These beef and spinach lasagna roll-ups are a unique twist on traditional lasagna. The ground beef is cooked with onions, garlic, and Italian seasoning, then combined with spinach and ricotta cheese. The mixture is spread onto cooked lasagna noodles, rolled up, and topped with marinara sauce and mozzarella cheese. Bake until the cheese is melted and bubbly. These lasagna roll-ups are a fun and delicious way to enjoy the flavors of lasagna in a convenient and individual serving.