Step 1 of 11
Four-Cheese Baked Spaghetti
Preheat the oven to 375°F.
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Step 2 of 11
Four-Cheese Baked Spaghetti
Spray a 9x13-inch baking dish with nonstick cooking spray. Set aside.
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Step 3 of 11
Four-Cheese Baked Spaghetti
Bring a large pot of water to a boil. Add a generous pinch of salt. Once boiling, add the spaghetti to the water and cook, stirring occasionally, until the pasta is al dente, 9-10 minutes. Drain the pasta in a large colander, and rinse thoroughly with cold water. While the pasta cooks, prepare the cheese mixture.
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Step 4 of 11
Four-Cheese Baked Spaghetti
Place the ricotta, Parmesan, salt, black pepper, garlic powder, and Italian seasoning in a large mixing bowl. Stir with a rubber spatula to thoroughly combine.
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Step 5 of 11
Four-Cheese Baked Spaghetti
Return the drained spaghetti to the pot. Add the marinara sauce and remaining Parmesan, and stir to thoroughly coat the noodles.
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Step 6 of 11
Four-Cheese Baked Spaghetti
Transfer the about 1/3 of the sauced pasta to the prepared baking dish. Drop half the ricotta mixture by spoonfuls over the spaghetti, and gently spread it into an even layer. Layer about 1/3 of the mozzarella and provolone cheeses over the ricotta. Repeat with another 1/3 of the noodles, the remaining ricotta, and another 1/3 each of the mozzarella and provolone cheeses. Top with the last 1/3 of noodles. Layer the remaining mozzarella and provolone cheese in an even layer over the top of the dish.
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Step 7 of 11
Four-Cheese Baked Spaghetti
Cover the baking dish with a sheet of aluminum foil.
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Step 8 of 11
Four-Cheese Baked Spaghetti
Bake the spaghetti on middle rack of oven for 40 minutes.
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Step 9 of 11
Four-Cheese Baked Spaghetti
Remove the aluminum foil and continue baking until cheese on top is lightly browned, about 15 minutes.
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Step 10 of 11
Four-Cheese Baked Spaghetti
Check to see that pasta is done. Remove from oven or add time as needed.
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Step 11 of 11
Four-Cheese Baked Spaghetti
Allow the spaghetti to rest for 20 minutes before serving.