World's Best Lasagna

Name: World's Best Lasagna
Prep time: 30 min
Cook time: 2 h 30 min
Total time: 3 h
Cuisine: Italian
Ingredients: 1 pound sweet Italian sausage; 0.75 pound lean ground beef; 0.5 cup minced onion; 2 cloves garlic, crushed; 1 (28 ounce) can crushed tomatoes; 2 (6.5 ounce) cans canned tomato sauce; 2 (6 ounce) cans tomato paste; 0.5 cup water; 2 tablespoons white sugar; 4 tablespoons chopped fresh parsley, divided; 1.5 teaspoons dried basil leaves; 1.5 teaspoons salt, divided, or to taste; 1 teaspoon Italian seasoning; 0.5 teaspoon fennel seeds; 0.25 teaspoon ground black pepper; 12 lasagna noodles; 16 ounces ricotta cheese; 1 egg; 0.75 pound mozzarella cheese, sliced; 0.75 cup grated Parmesan cheese