Homemade Lasagna

Name: Homemade Lasagna
Prep time: 20 min
Cook time: 50 min
Total time: 1 h 10 min
Cuisine: Italian
Ingredients: 1/2 pound ground beef; 1/2 pound Italian sausage; 1/2 onion (chopped); 1 large carrot (finely chopped); 4 cloves garlic (minced); 1 teaspoon fennel seeds; 28 ounces crushed tomatoes; 15 ounces tomato sauce; 6 ounces tomato paste; 1/2 cup beef broth; 1/4 cup fresh basil (chopped); 1 teaspoon dried oregano; 1/2 teaspoon salt; 1/4 teaspoon ground black pepper; 15 ounces ricotta cheese; 1 egg; 2 tablespoons fresh parsley (chopped); 1/8 teaspoon nutmeg; 12 lasagna sheets (homemade pasta sheets, fresh pasta sheets, no-boil sheets, or pre-boiled pasta sheets); 2 cups mozzarella cheese (grated); 1 cup Parmigiana-Reggiano (grated)