Favorite Fajita Bake

Ingredients

• 2 tablespoons avocado oil, divided
• 1/2 medium yellow onion, sliced
• 2 medium bell peppers, colors of your choice, sliced
• 1 1/2 pounds chicken breasts, boneless and skinless, sliced or cubed
• 2 teaspoons garlic, minced
• 1/2 cup tomato sauce
• 1/3 cup salsa, store-bought or homemade
• 2 teaspoons smoked paprika
• 1 teaspoon cumin
• 1 teaspoon chili powder
• 1 teaspoon salt
• 1/2 teaspoon pepper
• 1 cup black beans, drained and cooked, optional
• 2 medium whole-wheat tortillas, cut into pieces
• 2 cups spinach
• 1 1/2 cups Mexican blend cheese, shredded
• 1/4 cup cilantro leaves