Mushroom Chicken Breast Stir-Fry

Cut the mushrooms and chicken breast into bite-sized pieces.

Slice the bell pepper and onion into easy-to-eat pieces.

Heat olive oil in a pan and stir-fry the chicken breast.

When the chicken is about halfway cooked, add mushrooms, onion, and bell pepper, then continue stir-frying.

Season with salt and pepper.

Once the vegetables are cooked through, turn off the heat.