Comfort food doesn’t have to be complicated. This Easy Baked Rotini is the kind of dinner that shows up warm and bubbling, smells like a cozy kitchen, and disappears fast. This recipe takes pantry-friendly rotini and a simple tomato sauce, folds in a creamy cottage cheese mixture, and finishes with oozy mozzarella for an irresistible weeknight meal. It keeps things straightforward, uses everyday ingredients, and delivers big on flavor — perfect for feeding a family, bringing to a potluck, or meal-prepping for the week.

If you love hands-off casseroles with comforting textures and straightforward prep, this Easy Baked Rotini will become a go-to. The pasta bakes with the sauce and cheese so each forkful has a balanced mix of tomato brightness, tender pasta, and cheesy creaminess. Below you’ll find a clear ingredient list and step-by-step directions rewritten for clarity, along with tips for variations, storage, and serving suggestions.

Why this recipe works

There are a few reasons this Easy Baked Rotini is such a winner. First, rotini’s spirals hold sauce and cheese beautifully, so every bite is flavored. Second, the cottage cheese mixed with an egg adds creamy body without making the bake overly dense. Finally, using a jarred spaghetti sauce or marinara keeps the prep fast and consistent, while shredded mozzarella gives the golden, melty finish that makes this dish feel indulgent.

Ingredients

16 ounces rotini noodles
28 ounces spaghetti sauce, or marinara
16 ounces cottage cheese, full-fat, or reduced-fat (not fat-free)
1 cup mozzarella cheese, shredded *used in 2 steps
1 large egg, whisked
1 cup mozzarella cheese, shredded *used in 2 steps

Equipment

Large pot for boiling pasta
Colander
Large mixing bowl
Wooden spoon or spatula
9×13-inch baking dish (or similar)
Aluminum foil (optional)
Measuring cups and a whisk

Rewritten Step-by-Step Directions

Follow these clear steps to make this Easy Baked Rotini from start to finish. The order matches the original recipe intentions while clarifying each action and keeping the ingredient amounts unchanged.

Preheat your oven to 350°F (175°C). Lightly grease a 9×13-inch baking dish or spray it with nonstick spray; set it aside.
Bring a large pot of salted water to a rolling boil. Add the 16 ounces rotini noodles and cook according to the package directions for al dente (usually about 8–10 minutes). Stir occasionally to prevent sticking.
When the rotini is al dente, drain it in a colander and return it to the pot or place it into a large mixing bowl. You want the pasta warm but not dripping.
Pour the full 28 ounces spaghetti sauce, or marinara, over the warm rotini. Use a spoon or spatula to stir until the pasta is evenly coated in the sauce.
In a separate bowl, combine the 16 ounces cottage cheese with 1 large egg that has been whisked. Stir the mixture until it is smooth and the egg is fully incorporated. This creates a creamy binder for the pasta.
Add the cottage cheese and egg mixture to the sauced rotini. Stir gently but thoroughly so the cottage cheese is distributed evenly throughout the pasta and sauce.
Fold in 1 cup mozzarella cheese, shredded (the first of the two uses). Mix until the cheese is nicely incorporated into the pasta mixture.
Transfer the pasta mixture into the prepared 9×13-inch baking dish, spreading it into an even layer so it bakes uniformly.
Sprinkle the remaining 1 cup mozzarella cheese, shredded (the second of the two uses), evenly over the top of the pasta in the baking dish. This top layer will melt and brown to create a golden crust.
If you prefer a softer top, cover the baking dish loosely with aluminum foil. For a more browned top, leave it uncovered for the duration of baking.
Bake in the preheated oven for about 25–30 minutes, until the casserole is hot and the cheese on top has melted and begun to turn golden. If you covered the dish, remove the foil for the last 5–7 minutes to encourage browning.
When the bake is finished, remove it from the oven and let it rest for 5–10 minutes. This short resting time helps the casserole set so portions hold together nicely when served.
Scoop and serve warm. Leftovers will keep well in an airtight container in the refrigerator for up to 4 days.

Notes and tips for success

Do not overcook the rotini during boiling; al dente pasta will finish cooking in the oven and retain better texture.
If your cottage cheese is very lumpy and you prefer a smoother texture, give it a quick pulse in a blender or food processor before mixing with the egg.
Two identical listings of 1 cup mozzarella cheese are intentional: one cup is stirred into the pasta, and the second cup is reserved to top the casserole for a golden finish.
To add flavor without much extra work, stir 1–2 teaspoons dried Italian seasoning into the sauce before combining with the pasta, or sprinkle chopped fresh basil on top after baking.
For extra protein, fold in cooked sliced chicken breast or cooked ground beef if you like. Make sure any added meat is cooked separately and drained before mixing into the pasta.

Variations

Easy adaptations can personalize this Easy Baked Rotini without changing the comfortable formula.

Vegetable boost: Stir in a cup of sautéed spinach, chopped roasted bell peppers, or mushrooms when you add the cottage cheese mixture.
Spicy twist: Mix 1/2 teaspoon red pepper flakes into the sauce before combining for a gentle heat.
Herby brightness: Fold in chopped fresh parsley, basil, or a squeeze of lemon after baking to lift the flavors.
Cheese swap: Use a blend of mozzarella and provolone on top for a slightly tangier, more complex melt.

Serving suggestions

This Easy Baked Rotini is hearty on its own but pairs beautifully with simple sides to round out the meal. Try a crisp green salad dressed with lemon and olive oil, roasted vegetables, or crusty bread to soak up any extra sauce. A light side of steamed green beans or a fresh cucumber salad keeps the meal balanced.

Make-ahead and storage

To make ahead: Assemble the casserole up to the point of baking, cover it tightly, and refrigerate for up to 24 hours. When ready to bake, add 5–10 minutes to the baking time and bake straight from the refrigerator, covered for part of the time to prevent drying.
To freeze: After baking and cooling completely, wrap the dish tightly with plastic wrap and aluminum foil and freeze for up to 2 months. Thaw overnight in the refrigerator, then reheat in a 350°F oven until warmed through, about 20–30 minutes.
To reheat single portions: Microwave leftovers on medium power in 30- to 60-second increments until hot, or reheat in a 350°F oven covered with foil for 15–20 minutes.

Nutrition and portioning

Portion size will vary depending on appetite, but this 9×13-inch casserole typically yields 6 generous servings. Using full-fat cottage cheese will increase richness and calories slightly; reduced-fat cottage cheese will lighten calories while still keeping creaminess. Adding vegetables can boost fiber and micronutrients without changing the comfort factor.

Final thoughts

This Easy Baked Rotini hits all the marks for a satisfying, family-friendly casserole: simple ingredients, minimal hands-on time, and reliable results. The cottage cheese and egg create a creamy interior, while the mozzarella gives you that irresistible golden topping. It’s the kind of recipe you’ll reach for when you want something warm, cheesy, and comforting that feeds a crowd with very little fuss.

Give it a try on a busy weeknight, or double the batch for an effortless meal the whole week. Once you’ve baked it up, you’ll understand why hearty bakes like this become staples — comforting, dependable, and endlessly adaptable. Enjoy your Easy Baked Rotini.

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Easy Baked Rotini

Comforting baked rotini with cottage cheese and marinara for an easy family casserole.

Prep Time10

Cook Time30

Total Time40

Servings: 8 servings

Ingredients

16 ounces rotini noodles
28 ounces spaghetti sauce or marinara
16 ounces cottage cheese full-fat or reduced-fat (not fat-free)
1 cup mozzarella cheese shredded (use in two steps; 1 cup for the mixture)
1 large egg whisked
1 cup mozzarella cheese shredded (use in two steps; 1 cup for topping)
1 tablespoon kosher salt for pasta water
1/2 cup reserved pasta cooking liquid optional, to loosen sauce

Instructions

Preheat the oven to 350°F (175°C).
Bring a large pot of water to a rapid boil and add 1 tablespoon kosher salt.
Add 16 ounces rotini and cook until about 1–2 minutes shy of the package al dente time, stirring occasionally.
Reserve 1/2 cup of the pasta cooking liquid, then drain the pasta in a colander.
In a large mixing bowl, combine drained rotini with 28 ounces spaghetti sauce (or marinara), 1/2 cup reserved cooking liquid, 16 ounces cottage cheese, and 1 cup shredded mozzarella; stir to combine and let cool slightly.
Stir the whisked large egg into the pasta mixture until evenly incorporated.
Transfer the mixture to a greased 9x13-inch (or 3-quart) baking dish and evenly sprinkle the remaining 1 cup shredded mozzarella over the top.
Bake for 30 minutes, or until the cheese is bubbly and the casserole is heated through.