This easy, one-pan, french onion smothered chicken is the perfect quick and delicious weeknight meal. This dish is made with simple ingredients and can be on the table in just 30 minutes. This meal is gluten free, dairy free option and is nut free!The best part about this french onion smothered chicken recipe is that it’s so easy to make. Just cook the chicken, onions and mushrooms in a skillet. Stir in some white wine and chicken broth. Lastly, top with shredded Gruyère cheese and broil until melted and bubbly.