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Roasted Vegetable Pasta Bake | Roasted vegetable pasta bake is LOADED with zucchini, summer squash, bell peppers, mushrooms, onions and then baked to a crispy golden perfection.  This vegetarian and gluten-free pasta bake has always been a go-to dinner recipe in our house!
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4.67 from 6 votes

Roasted Vegetable Pasta Bake | Vegetarian + Gluten-Free

Roasted vegetable pasta bake is LOADED with zucchini, summer squash, bell peppers, mushrooms, onions and then baked to a crispy golden perfection.  This vegetarian and gluten-free pasta bake has always been a go-to dinner recipe in our house!
Prep Time30 minutes
Cook Time30 minutes
Total Time1 hour
Course: Dinner, lunch, Main Course
Cuisine: Italian
Servings: 8 servings

Ingredients

Oven-Roasted Vegetables:

  • 2 bell peppers cut into thin, 1-inch-long slices
  • 2 zucchini squash cut in half and then into ½-inch thick slices
  • 2 summer squash cut in half and then into ½-inch thick slices
  • 1 sweet onion cut into thin, 1-inch-long slices
  • 6 oz. button mushrooms roughly chopped
  • ¼ cup olive oil
  • 1 Tbsp. Italian seasonings dried, or a mix of dried oregano and basil
  • 1 ½ tsp. salt
  • ½ tsp. pepper

Pasta Bake:

  • 12 ounces rotini pasta* gluten-free, cooked 1-2 minutes less than package directions
  • 24 ounces spaghetti sauce
  • 8 ounces mozzarella** shredded
  • ½ cup bread crumbs gluten-free
  • ¼ cup Parmesan cheese** grated
  • ½ tsp. garlic powder
  • 1 tsp. Italian seasonings dried, or a mix of dried oregano and basil
  • 2 Tbsp. butter** cut into 8 cubes

Instructions

  • Preheat oven to 425 degrees.
  • Place veggies on one large, or two medium-sized, baking sheets lined with parchment paper. Drizzle olive oil over veggies and sprinkle with seasonings, salt, and pepper. Toss to combine.
  • Bake in preheated oven for 12-14 minutes, or until veggies are roasted.
  • Spray a deep 9 x 13-inch baking pan, or lasagna pan, with non-stick cooking spray or coat with olive oil. Add cooked pasta, spaghetti sauce, mozzarella, and roasted vegetables. Toss to combine.
  • In a small bowl combine bread crumbs, Parmesan cheese, garlic powder, and 1 teaspoon Italian seasonings. Whisk to combine.
  • Sprinkle pasta bake with bread crumb mixture. Spread 8 cubes of butter out evenly on the top of the bread crumbs.
  • Cover pan with aluminum foil and reduce oven temperature to 375 degrees. Bake pasta for 25-30 minutes. Remove foil and broil on High for an additional 2-3 minutes.
  • Let pasta bake sit at room temperature for 10 minutes before serving. Serve with additional Parmesan cheese, salt, and pepper, to taste. Enjoy!

Notes

*I have successfully used Barilla's rotini pasta and Jovial's fusilli pasta in this recipe.
**Replace mozzarella and Parmesan with dairy-free cheese if vegetarian or vegan and use oil instead of the butter.

Nutrition

Calories: 438kcal | Carbohydrates: 52g | Protein: 17g | Fat: 18g | Saturated Fat: 7g | Cholesterol: 32mg | Sodium: 1121mg | Potassium: 870mg | Fiber: 6g | Sugar: 11g | Vitamin A: 1835IU | Vitamin C: 63.4mg | Calcium: 269mg | Iron: 3.3mg