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Dinner · Part 1 of 3: Ingredients

Creamy Crockpot Steak Fajita Queso Pasta

A close-up of creamy steak fajita pasta in a charcoal slow cooker with visible tender beef and peppers.
Prep
Cook
Total
Serves
6
Includes 5 min resting

Transform your weeknight dinner routine with this incredibly simple, one-pot slow cooker recipe that delivers bold Tex-Mex flavors. By combining tender steak, vibrant vegetables, and a luscious, creamy queso sauce, this dish offers a restaurant-quality experience right at your kitchen counter.

It is the ultimate solution for busy evenings when you want a hearty, satisfying meal without spending hours standing over a hot stove.

This creamy steak fajita queso pasta is designed for maximum flavor with minimal effort. By utilizing the slow cooker, the flank steak becomes exceptionally tender while the bell peppers and onions soften into the savory sauce.

The addition of cream cheese and Pepper Jack creates a velvety, slightly spicy base that perfectly complements the hearty penne pasta. Whether you are hosting a casual dinner or simply craving comfort food, this recipe provides a foolproof way to impress with authentic Tex-Mex flair and minimal cleanup.

Ingredients

Makes 6 servings · serves 6

Main

  • 2 lb flank steak, cut into strips
  • 3 bell peppers, sliced
  • 1 red onion, sliced
  • 2 tbsp fajita seasoning
  • 10 oz Rotel tomatoes
  • 2 cups beef broth

Sauce

  • 8 oz cream cheese
  • 2 cups Pepper Jack cheese, shredded
  • 16 oz penne pasta, cooked

Topping

  • 1/2 cup pico de gallo, jalapeños, cilantro, for serving
Contains: gluten, milk

Why this recipe works

The slow cooking method is ideal for flank steak because it allows the tough muscle fibers to break down gradually in the seasoned broth. This results in incredibly tender strips that absorb the fajita spices and the savory essence of the Rotel tomatoes.

Ready to start cooking right away??? Jump to Part 2 ? Step-by-Step Method ?

The low, consistent heat ensures that the vegetables retain their structure while infusing the liquid with deep, caramelized onion and pepper flavors.

Using a slow cooker for a pasta dish ensures that the sauce develops a complex profile that is difficult to achieve on the stovetop. By melting the cream cheese and Pepper Jack into the braising liquid at the end, you create a cohesive, emulsified sauce that clings to every piece of penne.

This process prevents the pasta from becoming overcooked, as it is only added once the main components have reached their peak tenderness.

Notes and substitutions

For the best results, use a high-quality fajita seasoning blend that contains a mix of chili powder, cumin, and smoked paprika. If you prefer a milder dish, you can swap the Pepper Jack for Monterey Jack or a mild cheddar. Ensure that the flank steak is sliced against the grain to maximize tenderness, which is crucial for a pleasant texture in every bite.

The choice of pasta is flexible, but penne or rigatoni work best because their shape holds the thick, creamy sauce effectively. If you are using a different pasta, ensure it is cooked according to the package directions until al dente before stirring it into the slow cooker. Avoid using thin noodles like spaghetti, as they may become mushy when folded into the rich queso sauce.

  • flank steak: sirloin steak strips
  • Pepper Jack cheese: Monterey Jack or mild cheddar

Equipment

  • slow cooker
  • tongs
  • knife
  • cutting board
  • large pot for pasta

Coming up in Part 2: the method

  1. Layering and Initial Cooking · 1 stepLayering the ingredients
  2. Slow Braising the Steak · 1 stepSlow cooking the meat
  3. Melting the Queso and Serving · 1 stepCreating the queso sauce and serving

Up next · Part 2 of 3

3 steps · 3 h 30 min of cooking · what to look for at each stage

Step-by-step instructions (Part 2)