This 5-ingredient oven baked cheese manicotti is one of those busy-weeknight lifesavers where you literally throw completely frozen cheese manicotti into a roasting pan, pour a few basic ingredients over the top, and let the oven do all the work. No boiling noodles, no stuffing shells, no fancy prep—just a cozy, saucy, cheesy pasta bake that tastes like you fussed. It’s very much a Midwest-style comfort dinner: hearty, family-friendly, and unbelievably good for the tiny amount of effort it takes.
Serve this cheesy manicotti with a simple green salad (bagged salad is totally fine) and some garlic bread or buttered toast to soak up the extra sauce. A side of roasted or steamed veggies like broccoli or green beans balances out the richness. If you like a little something extra, add a small bowl of olives or a quick Italian-style chopped salad. For drinks, iced tea, sparkling water with lemon, or a light red wine all work well.
5-Ingredient Oven Baked Frozen Cheese ManicottiServings: 4-6
Ingredients
1 (24–26 ounce) jar marinara or pasta sauce
1/2 cup water
1 (20–24 ounce) package completely frozen cheese manicotti (about 10–14 pieces, do not thaw)
2 cups shredded mozzarella cheese
1/4 cup grated Parmesan cheese
Directions
Preheat your oven to 375°F (190°C). Lightly grease a metal roasting pan or a 9x13-inch metal baking pan so the pasta doesn’t stick.
In a medium bowl or large measuring cup, stir together the jar of marinara or pasta sauce with the water until evenly combined. This extra liquid helps the completely frozen manicotti cook through and stay tender in the oven.
Arrange the completely frozen cheese manicotti in a single layer in the metal roasting pan, nestling them close together but not stacked. Do not thaw the manicotti first—use them straight from the freezer.
Pour the sauce-and-water mixture evenly over the frozen manicotti, making sure every piece is well covered with sauce. Use a spoon to nudge sauce into the corners and between the manicotti so there are no dry spots.
Cover the roasting pan tightly with aluminum foil, crimping the edges to seal in steam. Place the pan on the middle rack of the preheated oven and bake for 45–55 minutes, or until the sauce is bubbly around the edges and the manicotti are heated through and tender when pierced with a knife.
Carefully remove the pan from the oven and take off the foil (watch for hot steam). Sprinkle the shredded mozzarella evenly over the top of the hot manicotti, then sprinkle the grated Parmesan over the mozzarella.
Return the uncovered pan to the oven and bake for another 10–15 minutes, or until the cheese is fully melted, bubbly, and lightly golden in spots.
Let the manicotti rest in the pan for about 5–10 minutes before serving so it can set slightly and is easier to scoop. Serve hot, spooning extra sauce from the roasting pan over each portion.
Variations & Tips
You can change up the flavor easily while keeping the 5-ingredient, throw-it-in-the-pan simplicity. Use a different pasta sauce (roasted garlic, tomato basil, or spicy arrabbiata) for a new twist. If your family likes extra cheese, bump the mozzarella up to 3 cups or use an Italian cheese blend instead. For a slightly richer topping, mix the shredded mozzarella and Parmesan together before sprinkling so it melts more evenly. If your manicotti package is on the larger side or very thick, add an extra 1/4 cup water to the sauce mixture and lean toward the longer baking time so the centers cook through. For a little color and flavor, you can sprinkle dried Italian seasoning or crushed red pepper flakes over the cheese before the final bake (this would count as an extra ingredient, so only add it if you’re not strictly limiting yourself to five). Food safety tips: Always keep the cheese manicotti frozen until you’re ready to assemble; do not let it sit out at room temperature for long, especially if your kitchen is warm. Bake until the manicotti are piping hot all the way through—the sauce should be vigorously bubbling around the edges, and an instant-read thermometer inserted in the center of a piece should reach at least 165°F (74°C). Refrigerate leftovers within 2 hours of baking, store in a covered container, and reheat thoroughly before eating.
