How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Slow Cooker Beef Fajitas?

You need 15 ingredients. The key ingredients include: 1 medium green bell pepper, cut into 1/2-inch strips, 1 medium sweet red pepper, cut into 1/2-inch strips, 1 medium yellow pepper, cut into 1/2-inch strips, 1 medium onion, thinly sliced, and more.

Is Slow Cooker Beef Fajitas suitable as soups & stews?

Yes, Slow Cooker Beef Fajitas falls under the Soups & Stews category and is a great choice for this type of meal.

How do I store leftover Slow Cooker Beef Fajitas?

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

Slow Cooker Beef Fajitas Recipe

Name: Slow Cooker Beef Fajitas
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1 medium green bell pepper, cut into 1/2-inch strips; 1 medium sweet red pepper, cut into 1/2-inch strips; 1 medium yellow pepper, cut into 1/2-inch strips; 1 medium onion, thinly sliced; 2 lbs boneless beef sirloin, cut into thin strips; 3/4 cup water; 2 tablespoons red wine vinegar; 1 tablespoon lime juice; 1 teaspoon ground cumin; 1 teaspoon chili powder; 1/2 teaspoon salt; 1/2 teaspoon garlic powder; 1/2 teaspoon pepper; 1/2 teaspoon cayenne pepper; 8 (8 inch) flour tortillas, warmed

Try this homemade Slow Cooker Beef Fajitas recipe the whole family will love. Made with green bell pepper, sweet red pepper, yellow pepper and onion. Ea…

This Slow Cooker Beef Fajitas relies on simple, everyday ingredients such as medium onion, thinly sliced, water, red wine vinegar and lime juice. It comes together quickly and makes 4 servings, at about 1330 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It works as a light main on its own or as a starter alongside crusty bread, and it's just as good for a cozy night in as it is for feeding a crowd. Leftovers keep well, so it's a smart choice for meal prep too.

Updated Jun 30, 2026

Serves 4 Soups & Stews

1330

kcal

Calories

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

A good 1:1 gluten-free flour blend works well if you need a gluten-free version.

No specific allergen information. Please check the ingredient list for possible allergens.

My Personal Notes

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Slow Cooker Beef Fajitas

Tips for the best results

Variations & substitutions

My Personal Notes

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