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Bowl of Italian Zucchini Casserole in a white dish with spoon.

Italian Zucchini Casserole

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 5 from 1 review
  • Author: Ben Myhre
  • Prep Time: 20 Minutes
  • Cook Time: 30 Minutes
  • Total Time: 50 Minutes
  • Yield: 4 servings 1x
  • Category: Casserole
  • Method: Bake
  • Cuisine: Italian
  • Diet: Vegetarian


This Italian Zucchini Casserole is easy, tasty, and a great way to use fresh zucchini. This is done in just an hour and is a great vegetable-based dish that can serve as a main course or side dish. 


  • 8 ounces macaroni noodles
  • 2 cups whole milk
  • 3 tablespoons butter
  • 3 tablespoons all-purpose flour
  • 3 small zucchini, roughly chopped
  • 8 ounces mozzarella, shredded
  • 3/4 cup Italian bread crumbs
  • 1 teaspoon salt
  • 1/2  teaspoon pepper
  • 1/4 teaspoon cayenne pepper


  1. Cook macaroni to instructions, but subtract one minute of cooking time, and preheat oven to 375 Fahrenheit.
  2. While water is heating, melt butter in a saucepan over medium-high heat
  3. Add flour and mix well into a paste
  4. Slowly add milk and continue stirring to ensure the sauce doesn’t scorch pan
  5. The sauce should thicken about the time it starts to boil. Add in 1/2 of the cheese at this point and mix until melted
  6. Add salt, pepper, and cayenne and stir in.
  7. Remove sauce from heat and set aside.
  8. In a large dish, add zucchini, noodles, sauce. Mix.
  9. Add mixture to deep casserole dish.
  10. Mix remaining mozzarella and bread crumbs. Top casserole with this remaining cheese/bread crumb mixture.
  11. Add to oven and bake for 30 minutes


  • Use your best judgment on zucchini sizes, but I used small zucchinis in my recipe. 
  • The sauce by itself is a bit powerful in terms of salt and pepper, but once it is mixed with the noodles and zucchini, it is balanced. That said, add to your taste.
  • Use a deeper casserole dish for the best results.
  • When making the sauce, make sure to continue stirring to prevent scalding.
  • This dish is only truly vegetarian if you use vegetarian cheese.