This cheesy meatball casserole is a family favorite, with basil adding flavor to the meatballs and grated onion adding moisture. Melted mozzarella cheese tames the spice, but feel free to cut back or eliminate the crushed red pepper if you prefer a milder dish.

Preheat oven to 350°F. Bring a large pot of water to a boil and add pasta; cook until the center of the pasta is still somewhat firm, about 4 minutes less than package directions. Drain the pasta and transfer to a 9-by-13-inch baking dish. Add half of marinara sauce to the pasta and stir to coat.

Combine ground beef, panko, onion, basil, egg, Italian seasoning, salt and crushed red pepper in a large bowl; gently mix with your hands (do not overmix). Form the mixture into 16 (about 1 1/2-inch) meatballs, nestling the meatballs into the pasta mixture as you work. Pour the remaining marinara sauce over the casserole and top with cheese.

Bake until a thermometer inserted into the meatballs registers at least 160°F and the cheese is lightly browned, 35 to 40 minutes. Garnish with basil, if desired.