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+ servings

Vegetable Pasta Bake

A cozy, crowd-pleasing casserole made with pasta, sautéed vegetables, and a cheesy topping, perfect for weeknight dinners and leftovers.
Prep Time 15 minutes
Cook Time 25 minutes
Total Time 40 minutes
Serving Size 6 servings

Ingredients

Pasta and Cheese

  • 12 oz Penne or rigatoni pasta Short tubular pasta holds the sauce well.
  • 1-1.5 cups Shredded mozzarella cheese
  • 0.5 cups Grated parmesan cheese

Vegetables

  • 1 medium Onion, chopped
  • 2-3 cloves Garlic, minced
  • 1-2 Bell peppers, chopped (any color)
  • 1 medium Zucchini, sliced
  • 4-5 cups Fresh spinach, loosely packed

Sauce Base

  • 14-15 oz Canned diced tomatoes Swap in whole canned tomatoes crushed by hand if you prefer chunk-free sauce.
  • 0.5 cups Vegetable broth
  • 1 tsp Italian seasoning
  • to taste Salt and pepper

Cooking Essentials

  • 1-2 tbsp Olive oil For sautéing.

Instructions

Preparation

  • Preheat the oven to 375°F (190°C) and grease a 9x13-inch baking dish.
  • Bring a large pot of salted water to a boil. Add pasta and cook until al dente according to package directions. Drain and set aside.
  • Heat olive oil in a large skillet over medium heat. Add chopped onion and sauté for 3-4 minutes until translucent.
  • Add minced garlic and cook for 30 seconds until fragrant.
  • Add chopped bell peppers and sliced zucchini. Sauté for 5-7 minutes until the vegetables are tender but not mushy.
  • Stir in spinach and cook until wilted.
  • Pour in canned diced tomatoes and vegetable broth. Season with Italian seasoning, salt, and pepper. Simmer for 2-3 minutes to meld flavors.
  • Add the drained pasta to the skillet and toss gently to combine.

Baking

  • Transfer the pasta-vegetable mixture into the prepared baking dish. Evenly sprinkle shredded mozzarella and grated parmesan over the top.
  • Bake for 20-25 minutes until cheese is melted and bubbly.
  • For a browned top, broil for an additional 1-2 minutes, watching closely.
  • Let cool for 5-10 minutes before serving.

Notes

Great for feeding a family or bringing to potlucks. Flexible with seasonal vegetables. Can be made vegan by using plant-based cheese and nutritional yeast.