My aunt always uses her summer garden harvest for this 4 ingredient bake and it turns out perfectly golden brown every single time

This oven baked 4-ingredient zucchini parmesan pasta is exactly the kind of recipe my aunt leans on when her summer garden is overflowing with zucchini. She’ll line a sheet pan with foil, toss everything together, and let the oven do the work while the top turns perfectly golden brown and crispy. It’s simple, budget-friendly, and feels like comfort food without a ton of fuss—perfect for busy weeknights when you still want something homemade and a little special.

Serve this zucchini parmesan pasta straight from the foil-lined baking sheet with a big green salad or sliced garden tomatoes on the side. Garlic bread or a warm baguette is great for scooping up the crispy, cheesy bits. It also pairs nicely with grilled chicken, Italian sausage, or roasted chickpeas if you want extra protein. A light white wine or sparkling water with lemon keeps it feeling fresh and summery.

Servings: 4

8 oz dry rotini pasta

Preheat your oven to 400°F (200°C). Line a large rimmed baking sheet with aluminum foil, letting it come up the sides a bit to catch any cheese that melts. Lightly coat the foil with nonstick cooking spray or a thin film of olive oil so the pasta and cheese don’t stick.

Bring a large pot of salted water to a boil. Add the rotini pasta and cook until just shy of al dente, about 1–2 minutes less than the package directions. The pasta will finish cooking in the oven. Drain well and let it steam off for a minute so it’s not too wet.

While the pasta cooks, wash the zucchini and slice into 1/4-inch thick rounds. Try to keep the slices even so they roast at the same rate.

In a large bowl, combine the drained rotini, zucchini rounds, olive oil, 1 cup of the grated Parmesan, salt, and black pepper (if using). Toss until everything is well coated and the cheese is clinging to the pasta and zucchini.

Spread the mixture in an even layer on the prepared foil-lined baking sheet. Try to get as many zucchini rounds in a single layer as possible so they can brown and crisp instead of steaming.

Sprinkle the remaining 1/2 cup Parmesan evenly over the top, focusing on the zucchini and any exposed pasta. This extra layer is what helps you get those golden brown, crispy bits on top just like my aunt’s.

Bake on the middle rack for 18–22 minutes, or until the zucchini is tender, the pasta edges are slightly crisp, and the Parmesan on top is melted and turning golden brown. For extra color, you can switch to broil for the last 1–2 minutes, watching closely so it doesn’t burn.

Remove the baking sheet from the oven and let the pasta sit for 3–5 minutes to set slightly. Use a metal spatula to lift generous scoops of pasta and crispy zucchini rounds from the foil. Serve warm straight from the pan, scraping up any browned cheesy bits.

To keep this truly 4-ingredient, stick to rotini, zucchini, Parmesan, and olive oil, then add only pantry seasonings like salt and pepper. For extra flavor without changing the spirit of the recipe, sprinkle in dried Italian seasoning, garlic powder, or red pepper flakes when you toss everything together. You can swap rotini for any short pasta (penne, fusilli, or shells) and use yellow summer squash along with the zucchini if that’s what your garden is giving you. If you like it saucier, drizzle a few spoonfuls of marinara over the pasta before baking or serve it on the side. To add protein, stir in cooked Italian sausage, shredded rotisserie chicken, or a can of drained chickpeas before baking, understanding this moves it beyond 4 ingredients. For meal prep, you can slice the zucchini and grate the Parmesan a day ahead; store them covered in the fridge. Cook the pasta right before baking so it doesn’t get mushy. Food safety tips: Cool leftovers to room temperature within 2 hours, then refrigerate in an airtight container and use within 3–4 days. Reheat on a foil-lined sheet at 375°F until hot and sizzling to bring back some of the crispiness. Always wash zucchini well before slicing and keep raw ingredients and cooked pasta separate from raw meats if you’re adding any proteins.