Creating the Easy Keto Chicken Quesadilla is straightforward if you follow these simple steps:

1. Prepare Ingredients: Shred the cooked chicken and slice the bell peppers and onions if using.
2. Season Chicken: In a bowl, mix the shredded chicken with taco seasoning until well-coated.
3. Heat Oil: In a skillet, heat the olive oil over medium heat.
4. Cook Vegetables: Add the sliced bell peppers and onion to the skillet, cooking until softened, about 3-5 minutes.
5. Add Chicken: Stir the seasoned chicken into the skillet, allowing it to heat through for about 2-3 minutes.
6. Assemble Quesadilla: On a low-carb tortilla, layer half of the cheese, followed by the chicken mixture, and then top with the remaining cheese. Place another tortilla on top.
7. Cook Quesadilla: Carefully transfer the assembled quesadilla to the skillet. Cook for about 3-4 minutes on each side, or until golden brown and crispy.
8. Slice and Serve: Remove from the skillet and let it cool for a minute. Slice into wedges and serve with sour cream or guacamole if desired.

These steps will guide you in creating an amazing Easy Keto Chicken Quesadilla that is sure to impress!