Step 1

Marinate the Steak: Combine steak slices with olive oil, lime juice, garlic, chili powder, cumin, salt, and pepper in a bowl. Cover and refrigerate for at least 1 hour.

Step 2

Cook the Steak: Heat a skillet over medium-high heat. Add the marinated steak and cook until browned and cooked through, about 5-7 minutes. Remove from the skillet and set aside.

Step 3

Sauté Vegetables: In the same skillet, add a little more oil if needed and sauté the onions and bell peppers until softened and slightly charred, about 8 minutes.

Step 4

Assemble Quesadillas: Lay out the tortillas and evenly distribute the cheese, cooked steak, onions, and bell peppers on one half of each tortilla. Fold the other half over to cover the filling.

Step 5

Cook Quesadillas: Wipe the skillet clean and heat over medium heat. Cook each quesadilla until golden and crispy on both sides, about 3-4 minutes per side.

Step 6

Serve: Cut each quesadilla into wedges and serve with guacamole, salsa, and sour cream.