Fry ground beef patties and onions for a casserole dish and get a meal so delicious your husband will be begging for more! It’s like a diner dinner at home.

1 small onion, thinly sliced
1 cup sliced mushrooms (fresh or canned, drained)
2 tbsp butter
2 tbsp all-purpose flour
2 cups beef broth (low sodium if possible)
1 tbsp ketchup
1 tsp Dijon or yellow mustard
Additional salt and pepper to taste
Cooking spray or a little oil for greasing the baking dish
Directions
Preheat your oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish or similar-sized casserole with cooking spray or a bit of oil