A creamy and cheesy casserole with summer squash, zucchini, spinach, mushrooms and a buttery cracker crumb topping. It is so cheesy and yummy that you almost forget you're eating vegetables... Worked on my kids, anyway! They couldn't get enough.


Recipe Summary

35 mins
35 mins
1 hr 10 mins
10 servings


Original recipe yields 10 servings
The ingredient list now reflects the servings specified
Ingredient Checklist


Instructions Checklist
  • Preheat the oven to 375 degrees F (190 degrees C).

  • Melt 1 tablespoon butter in a large saucepan over medium heat. Add zucchini and yellow squash; cover and cook, stirring occasionally, until soft, 6 to 10 minutes. Drain and set aside.

  • Melt 1 tablespoon butter in another large saucepan. Add mushrooms, onion, and garlic; cook and stir until onion starts to soften, about 5 minutes. Add spinach and saute until wilted, 2 to 3 minutes.

  • Mix crackers with 1/2 cup melted butter in a medium bowl.

  • Combine squash mixture, mushroom mixture, tomatoes, pimento peppers, mayonnaise, green onion, oregano, basil, salt, and pepper in a large bowl. Mix well.

  • Layer 1/2 of the squash mixture in a large casserole dish. Cover with 1/2 of the Cheddar and Parmesan cheeses. Top with 1/2 of the cracker crumbs. Layer remaining squash mixture, cheese, and cracker crumbs on top.

  • Bake in the preheated oven until cheese is bubbly and cracker crumbs are browned, 20 to 30 minutes.

Nutrition Facts

530 calories; protein 11.5g 23% DV; carbohydrates 32.7g 11% DV; fat 40g 62% DV; cholesterol 56.2mg 19% DV; sodium 897.2mg 36% DV. Full Nutrition

Reviews (3)

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Most helpful positive review

Rating: 4 stars
It was a big hit at our house. It was delicious but a bit dry. Next will need to add some broth. Read More
4 Ratings
  • 5 star values: 1
  • 4 star values: 3
  • 3 star values: 0
  • 2 star values: 0
  • 1 star values: 0
Rating: 4 stars
This was the first time I made this dish. I left out the spinach unintentionally but the next time I will make sure to add it. I bet with the spinach it would have been a rating of 5. The dish is time consuming but it was well worth it! Having the spices and the added crunch was key. A great dish. Read More
Rating: 4 stars
It was a big hit at our house. It was delicious but a bit dry. Next will need to add some broth. Read More
Rating: 5 stars
Awesome recipe - an immediate favorite. The varied flavors of this dish work very well together. I swapped out the crushed Ritz cracker topping for crispy french onions to reduce the carb count. This one will definitely be a regular dish on our table. Read More