Dinner is on the table in less than 30 minutes with this easy recipe. Piles of cheese and chicken, with tasty vegetables, make this Leftover Chicken Fajita Casserole a must-have on your menu plan.
In a large skillet over medium-high heat, add oil and swirl to coat. Add onions and peppers to skillet, cooking over medium-high heat and stirring occasionally until softened.