Instant Pot Fiesta Beef and Spaghetti

A scoop of Fiesta Beef and Spaghetti.

Creating south of the border flavor at home is easy when you serve up this speedy Instant Pot Fiesta Beef and Spaghetti. Savory ground beef and spaghetti noodles come together in a zesty sauce with cheese that everyone goes crazy for.

Instant Pot Fiesta Beef and and Spaghetti Recipe

A scoop of ground beef and spaghetti

Howdy! Chef Alli Here. Let’s Get You Cookin’…..Shall We?? 🙂

You don’t need Mexican take-out when there’s a big bowl of this Instant Pot Fiesta Beef and Spaghetti on the table. I know when I make any meal that’s chock full of Mexican flavors, it’s probably going to be a hit with my family.

Because we love all things Mexican in this house, I try to make south-of-the-border type meals pretty often around here. Our latest favorite is a new recipe I recently tested – Mexican Beef and Cheese Sanchiladas. The boys gave it two thumbs up, and they also said I could make this Walking Taco Pull-Apart Bread again soon, too.

We are pretty excited about Instant Pot meals, too – such a great way to get dinner on the table in a hurry. We never know when we will get in from doing chores or checking Mammas (cows), so I’m pretty thrilled that I’ve now got a way to speed up dinner by using my Instant Pot!

Some of our favorite Instant Pot meals are Instant Pot Baby Back Ribs, which are made in just 25 minutes…..fallin’ off the bone tender.

When you’re craving some comfort food in a big hurry, try 5-Minute Little Smokie Mac and Cheese, or 5-Minute Pepperoni Pizza Pasta.

And, by the way, if you’d prefer to make this recipe on your stove-top as a one-skillet meal, you can make Fiesta Beef and Noodle Skillet in just minutes.

How to Make Instant Pot Fiesta Beef and Spaghetti in Just 5 Fast Steps

  1. Brown off the ground beef in your Instant Pot, using the saute setting; drain any fats that accumulate after cooking the beef.
  2. Add the taco seasoning and the tomato paste; cook and stir for 1 minute.
  3. Add the diced tomatoes and green chilis (with juice) to the Instant Pot, then add the broken spaghetti pieces on top, spreading them out, but don’t stir them in. Pour the broth over the top if everything in the Instant Pot. DO NOT STIR!
  4. Lock the lid into place; position the valve to the sealing position. Choose the high pressure setting for 3 minutes, bringing the Instant Pot to full pressure.
  5. When the timer sounds, perform a quick release to remove all pressure from the Instant Pot; carefully unlock and remove the lid, giving the contents a gentle stir. Top with cheeses and serve!

Why This Recipe is a Winner –

  • It’s easy on the pocket book.
  • It’s super kid friendly – especially if you give the tomatoes and green chilies a blast in the food processor until smooth.
  • It’s FAST.
  • There are only a few on-hand ingredients required.
  • It’s a delicious one pot meal – hardly any dishes to wash!

Easy Recipe Tips for Making Instant Pot Mexican Beef and Spaghetti

What’s the best way to brown ground beef so it’s really flavorful?

  • Such a great question! Before adding your ground beef (or any ground meat, for that matter) to the Instant Pot when using the saute setting, be sure the inner pot is very nicely hot; add the ground beef and listen for the sizzle! When the ground beef hits a hot surface like that, it immediately begins to brown, caramelizing the exterior of the meat to give it a nice sear on the outside, adding great flavor.

Can I use other types of ground meat in place of the ground beef this recipe call for?

  • Surely. I often substitute ground venison in this dish because we’ve always got hunters who love to keep my freezer full. You could also substitute ground turkey, or ground chicken, or even lean ground bison, too.

If I don’t happen to have spaghetti pasta on hand for this pasta dish, can I substitute other shapes of pasta?

  • I’ve substituted elbow macaroni, small shell pasta, and penne pasta, too, in a pinch. (Pasta is pasta after all!)
  • Just know that when you use the other types of pasta, you will have to cook this dish for 5 minutes under pressure, instead of 3. Because the larger-size pastas will also absorb more liquid as they rest, you may have to add more broth after this dish is pressure cooked. (And when you reheat the leftovers, too.)
  • Also, I’ve noticed that when I’m substituting other pastas for the spaghetti, this dish isn’t as creamy in texture. FYI.
bowl of beef and spaghetti

When I made this pasta, it sure seemed like there was a lot of liquid inside the Instant Pot after I opened the lid. Is this how it should be?

  • Yep. This is because as the spaghetti sits a bit the pasta will absorb a lot of that liquid, allowing this dish to still remain saucy and delicious.

Does this pasta dish reheat well?

  • We actually love it as leftovers. Sometimes you may need to add a little chicken broth or some salsa to moisten it up a bit before popping it into the microwave. Pasta in any dish just LOVES to absorb any liquids available!

I was thinking about adding chili beans or pinto beans to the ground beef and spaghetti noodles. Is this a good idea and when should I do that step?

  • Excellent idea – it would definitely be delicious and would also help your meal go further, making it even more budget friendly.
  • Add the beans on top of the diced tomatoes and green chilies, then finish layering with the spaghetti pieces and chicken broth. And remember – don’t stir!

I’m curious? Why does the spaghetti need to be broken into quarters before cooking it?

  • For one simple reason: it cooks better in the Instant Pot that way…..AND it’s easier to eat.

What Tools Are Helpful for Making this Instant Pot Meal?

  • For chopping the fresh cilantro (or any fresh herbs, actually) I love using my kitchen shears. Simply put the cilantro into a small, rather deep little bowl and get to chopping!
  • For crumbling ground beef, I love using a wire potato masher! It works better than any beef crumbler tool I’ve ever tried.

Other Mexican Fiesta Recipes to Enjoy –

A bowl of creamy tomato noodles and ground beef.

Printable Recipe for Instant Pot Fiesta Beef and Spaghetti

A scoop of Fiesta Beef and Spaghetti.

Instant Pot Fiesta Beef and Spaghetti

Creating south of the border flavor at home is easy when you serve up this speedy Instant Pot Fiesta Beef and Spaghetti. Savory ground beef and spaghetti noodles come together in a zesty sauce with cheese that everyone goes crazy for.
Print Pin Rate
Prep Time: 15 minutes
Cook Time: 3 minutes
Approx. Time Needed for Instant Pot to Pressurize:: 15 minutes
Total Time: 33 minutes
Servings: 8 servings
Calories: 249kcal
Author: Chef Alli


  • 1 lb. lean ground beef
  • 2 Tbs. of your favorite taco seasoning
  • 1 Tbs. tomato paste
  • (2) 10 oz. cans diced tomatoes and green chilies, undrained, such as Rotel (may puree if desired)
  • 3 cups chicken broth
  • 8 oz. spaghetti or angel hair pasta, broken into quarters
  • 1/2 cup shredded cheddar cheese
  • 1/2 cup shredded mozzarella cheese
  • 1-2 Roma tomatoes, diced
  • 1-2 Tbs, chopped fresh cilantro, for garnish
  • sour cream and crushed tortilla chips, as desired, for toppings


  • Using the saute setting on the Instant Pot, preheat the pot, then add the ground beef and taco seasoning, cooking and crumbling the beef until it is fully cooked; drain any fats that accumulate, if needed.
  • Add the tomato paste to the ground beef mixture and cook for 1 full minutes, stirring often. Top the ground beef mixture with both cans of the diced tomatoes and green chilies, the chicken broth, and the broken spaghetti. DO NOT STIR!!
  • Still using the saute setting, bring the liquid in the bottom of the Instant Pot to a boil. Turn off the saute setting, then lock the Instant Pot lid into place, making sure the valve is set to the sealing position.
    Choose the high pressure setting for 3 minutes, bringing the Instant Pot to full pressure. When the timer sounds, perform a quick release to remove all the pressure from the Instant Pot.
  • Unlock and remove the Instant Pot lid, giving the contents a gentle stir, then top with the cheeses. Serve at once, garnished with tomatoes, cilantro, sour cream, and tortilla chips, as desired.


**Please note:  the cooking time stated for this recipe does not include the time required to bring the Instant Pot up to pressure since this can vary. This recipe was made using a 6-quart Instant Pot. 
Course: Main Course, Main Dish
Cuisine: Mexican
Keyword: ground beef, instant pot, Pasta


Calories: 249kcal | Carbohydrates: 25g | Protein: 20g | Fat: 7g | Saturated Fat: 4g | Cholesterol: 48mg | Sodium: 521mg | Potassium: 470mg | Fiber: 2g | Sugar: 2g | Vitamin A: 446IU | Vitamin C: 12mg | Calcium: 116mg | Iron: 3mg

Other Speedy Instant Pot Meals Your Family Will Love –






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Let’s Keep You Cookin’,
Chef Alli



Chef Alli

Chef Alli is a home-grown Kansas girl on a mission to strengthen families through enabling kitchen confidence, educating the family cook, and encouraging better food relationships. She believes with her whole heart that time spent with our loved ones and our overall quality of life is greatly enhanced by nutritious food made at home with simple, wholesome ingredients. She loves being able to connect and share this passion with others through her website, her social media presence, and her coveted speaking engagements.

Blog Comments

This dish was DELICIOUS! Allison made it for our family and my two kids even loved it, and they are hard to please!

Hi Ashley –
I’m so glad your fam liked the Fiesta Beef and Spaghetti! Thanks for letting me know, too.
Chef Alli

Step #3….Should that be changed to turn OFF the sauté button (after it’s come to a boil and before you put on lid and move valve to seal to bring up to pressure?)

Hi Robin – Thank you for bringing this to my attention. I have made the correction!
Chef Alli

Hi- the Roma tomatoes are in the ingredient list but not included in the instructions.

Hi Rose –
Thank you for letting me know about this! I’ve made the adjustment to the recipe. Hope you enjoyed making this dish!
Chef Alli

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