French onion beef and rice casserole is a comforting one-dish meal that combines tender ground beef, sweet caramelized onions, and fluffy long-grain rice, all enveloped in gooey melted Swiss cheese. Perfect for busy weeknights or family gatherings, this dish not only warms your heart but also delights your taste buds with its rich flavors and creamy texture.
Keywords: - Substitute ground turkey or chicken for a leaner option. - Add mushrooms or spinach for extra flavor and nutrition. - Store leftovers in an airtight container for up to three days.