Preheat your oven to 350°F and get ready for something amazing! In a large skillet, cook your ground beef, diced onion, and minced garlic over medium heat until the meat is beautifully browned and the onions are soft. Drain off any excess fat - we want flavor, not grease!
Stir in your drained green beans, cream of mushroom soup, milk, Worcestershire sauce, black pepper, and paprika. Mix everything together until it's nicely combined and looks absolutely delicious. Transfer this mixture to a greased 9x13-inch baking dish.
Sprinkle that beautiful shredded cheddar cheese evenly over the entire mixture - don't be shy with it! Then top with those crispy French fried onions for that perfect crunch factor.
Pop it in the oven uncovered for 20-25 minutes until it's bubbling around the edges and the top is golden brown and irresistible. Your kitchen is going to smell incredible!
Let it cool for about 5 minutes before serving - this gives it time to set up a bit and prevents any burned tongues! Serve this hearty, satisfying casserole and watch it disappear fast.
