Protein-rich · Lunch · Dinner
Chicken and Beef Fajitas
Crisp-tender peppers and onion with warm chicken and steak strips, tucked into low-carb tortillas. A protein-rich recipe, about 30 minutes total.
Published August 9, 2026 · Last updated August 20, 2026
Base yield
4 servings (2 fajitas each)
Prep
15 min
Cook
15 min
Meal
Lunch · Dinner
Estimated nutrition per serving: About 530 kcal | 47 g protein | 9 g fiber

Ingredients
Ingredient quantities scaled for 4 people. Base yield: 4 servings (2 fajitas each). Copy the scaled list for shopping.
- 3 medium bell peppers (red, green, and yellow), sliced into 1/4-inch strips
- 1 large yellow onion, sliced into 1/4-inch strips
- 2 tablespoons extra-virgin olive oil
- 12 ounces cooked chicken fajita strips, or cooked boneless skinless chicken breast, sliced
- 12 ounces cooked beef fajita strips, or cooked flank or skirt steak, sliced
- 1 teaspoon chili powder
- 1 teaspoon ground cumin
- 1/2 teaspoon smoked paprika
- 1/4 teaspoon garlic powder
- 3/4 teaspoon kosher salt, divided
- 1/2 teaspoon black pepper, divided
- 8 low-carb flour tortillas (6 to 8 inch)
- 1/2 cup shredded Colby-Jack cheese
- 1/2 cup guacamole or sliced avocado
- 1/2 cup light sour cream
- 8 lime wedges
Method
- 1
Slice 3 medium bell peppers and 1 large yellow onion into 1/4-inch strips. If the 12 ounces cooked chicken and 12 ounces cooked beef are in large pieces, cut them into thin strips about 1/2 inch wide. Set out 8 low-carb tortillas, 1/2 cup shredded Colby-Jack, 1/2 cup guacamole, 1/2 cup sour cream, and 8 lime wedges so the toppings are ready when the filling comes off the heat.
- 2
Heat 2 tablespoons extra-virgin olive oil in a 12-inch skillet over medium-high heat until the oil shimmers, about 1 minute.
- 3
Add the sliced peppers and onion. Sprinkle with 1/2 teaspoon of the kosher salt and 1/4 teaspoon of the black pepper. Stir-fry, tossing every 30 to 45 seconds, until the vegetables are glossy and crisp-tender, 6 to 8 minutes. They should still have a little bite, not turn soft or browned.
- 4
Sprinkle 1 teaspoon chili powder, 1 teaspoon ground cumin, 1/2 teaspoon smoked paprika, and 1/4 teaspoon garlic powder over the vegetables. Stir for 20 to 30 seconds, until the spices smell toasty.
- 5
Add the 12 ounces cooked chicken strips and 12 ounces cooked beef strips. Toss until every strip is coated in the peppers, onion, and spices. Cook, stirring often, until the meat is heated through and steaming, 3 to 4 minutes. Season with the remaining 1/4 teaspoon kosher salt and 1/4 teaspoon black pepper. Taste and adjust. Remove the skillet from the heat.
- 6
Warm the 8 tortillas using one of these methods. Microwave: stack them between two slightly damp paper towels and heat 20 to 30 seconds, until steamy. Oven: wrap the stack in foil and heat at 350°F for 8 to 10 minutes.
- 7
Build 8 fajitas, 2 per person. Fill each warm tortilla with about 1/2 cup of the meat-and-pepper mixture, dividing the skillet evenly. Top each fajita with 1 tablespoon sour cream, 1 tablespoon guacamole, and 1 tablespoon shredded Colby-Jack. Serve at once with lime wedges.
Protein-rich recipes
These meals make lean protein the anchor rather than an afterthought. Adequate protein intake and appropriately prescribed resistance training may both be part of an individualized plan; food alone cannot guarantee preservation of lean mass.
When appetite is limited, consider starting with the protein component, then continuing with vegetables and starch as comfortable.
How much protein and fiber are in one serving?
One serving is estimated to provide 47 g of protein and 9 g of fiber. Values vary by ingredient brand, portion, and preparation.
Important information
Educational content
Treatment requires evaluation
Individual experiences vary
Symptoms and emergencies
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