Kosher salt for the cooking water, about 4 teaspoons
1 1/2poundsground beef
1medium onion, chopped
1teaspoonminced garlic
1large jar spaghetti sauce, 24 to 32 ounces
2large eggs, beaten
16ounceswhole milk ricotta cheese
2 1/2cupsmozzarella cheese, divided
1/2cupParmesan cheese
2tablespoonschopped parsley
Instructions
Prevent your screen from going dark
Preheat the oven to 350 F. Cook the pasta in boiling salted water following the package directions for al dente. While the pasta is cooking, combine the eggs, ricotta cheese, 1 1/2 cups of mozzarella, and Parmesan cheese in a large bowl. Drain the pasta and stir into the cheese mixture.
Meanwhile, cook the ground beef. Put the beef in a large skillet over medium-high heat and cook it undisturbed for 4 minutes. Then, break it up, add the onions and garlic, and continue cooking until it is no longer pink.
Add the spaghetti sauce or marinara to the beef mixture and bring to a simmer.
Spoon 1/3 of the beef sauce mixture into a 2 1/2—to 3-qt baking dish, top with half the pasta, repeat the two layers, and finish with the last 1/3 of sauce.
Cover and bake for 45 minutes. Uncover and top with the remaining mozzarella; bake for a few more minutes or until the cheese is melted.
Notes
If you prepared the casserole in advance, remove it from the refrigerator and let it come to room temperature. Bake as directed, but if it's still quite cool it may take longer. Look for an internal temperature of 160 F to 165 F before finishing with the cheese topping.