Boil your lasagna noodles until they are al dente- they should be a little bit firm still. Drain and set aside
In a large pot, cook your ground beef and chopped onion in 1 tbsp of olive oil. Before the meat is fully browned, season it with fennel, basil, oregano, salt, and garlic. Add both cans of crushed tomatoes and bring to a simmer
In a small bowl, mix together the ricotta cheese, mozzarella, and parsley
Grease a 9x13 baking dish and ladle about a cup of meat sauce onto the bottom of the dish, or enough for it to be lightly covered. Layer noodles evenly across the top of the sauce and spread a layer of the ricotta cheese mixture. Repeat this process until there is no more meat sauce. Cover the top of the lasagna with provolone slices
Bake at 400 for 30 minutes, or until the top is golden and bubbly