01 -
In a large skillet over medium-high heat, cook the ground beef until well browned, breaking it up with a spoon as it cooks.
02 -
Pour the marinara sauce into the skillet, then add the broken lasagna noodles. Stir well to combine and coat the noodles.
03 -
Bring the mixture to a gentle boil, reduce heat to low, and cover. Simmer until noodles are tender, about 15 minutes, stirring occasionally.
04 -
Spoon dollops of ricotta over the skillet, sprinkle evenly with mozzarella, and cover. Continue cooking until the cheese is melted and bubbly, about 3 minutes.