In a large pot, cook sausage, ground beef, and garlic until brown and no longer pink. Drain fat.
Add crushed tomatoes, tomato paste, tomato sauce, water, brown sugar, basil, fennel seeds, Italian seasoning, garlic salt, and pepper. Cover and simmer for about 30-45 minutes.
While the sauce simmers, prep noodles by soaking them in hot water for 30 minutes.
Make ricotta mixture while the sauce is simmering by combining ricotta cheese, grated Parmesan, egg, nutmeg, and chopped parsley.
Layer lasagna as follows in a deep 9x13 baking dish:1. 2 cups meat sauce2. 3-4 noodles3. 2 cups meat sauce4. ½ ricotta mixture5. ½ of the shredded mozzarella6. 3-4 noodles7. 2 cups meat sauce8. Last half of ricotta mixture9. 3-4 noodles10. Last of meat sauce11. Last of the shredded mozzarella Cover with foil and refrigerate for at least 2 hours or overnight.
Preheat oven to 375°F.
Bake with foil on for the first 30 minutes. Uncover and bake for an additional 15-20 minutes. Let cool for 15-20 minutes before cutting and serving.
Sprinkle with fresh basil if desired.