Preheat oven to 375°F (190°C)
Brown ground Italian sausage in a large pan over medium-high heat until cooked through
Remove sausage from pan and set aside
Cook diced onion and minced garlic in same pan until translucent and lightly browned
Return cooked sausage to pan, add Italian seasoning, fire-roasted tomatoes, sea salt, and black pepper
Bring mixture to boil, then simmer for 10 minutes while flavors meld
In a separate bowl, combine ricotta, eggs, and 1/4 cup Parmesan into a smooth mixture
Layer noodles, meat sauce, and ricotta mixture in a greased 9×13-inch baking dish
Repeat layers ending with a top layer of meat sauce and mozzarella
Bake for 25 minutes until bubbly and browned on top
Let rest for 5-10 minutes before slicing
Garnish with fresh parsley or basil