Zucchini, Squash & Corn Casserole

Zucchini, Squash & Corn Casserole

Zucchini, Squash & Corn Casserole – our favorite side dish! Zucchini, Squash, Corn, Onion, garlic, white cheddar cheese, sour cream, mayonnaise, eggs, breadcrumbs and parmesan cheese. Seriously THE BEST!!! Great make ahead side dish. Perfect for all your potlucks, cookouts and holiday meals! #casserole #zucchini #squash #corn #sidedish #freezermeal

Zucchini, Squash & Corn Casserole - our favorite side dish! Zucchini, Squash, Corn, Onion, garlic, white cheddar cheese, sour cream, mayonnaise, eggs, breadcrumbs and parmesan cheese. Seriously THE BEST!!! Great make ahead side dish. Perfect for all your potlucks, cookouts and holiday meals! #casserole #zucchini #squash #corn #sidedish #freezermeal

We are obsessed with this delicious Zucchini, Squash & Corn Casserole. Fresh veggies and cheese are hard to beat! We’ve made this several times over the past month and it has been a hit every time. We really like it with grilled chicken and burgers.

This Zucchini, Squash & Corn Casserole can be made in advance and refrigerated overnight. I’ve even divided the casserole between two foil pans and frozen one for a quick side later.

This recipe uses “fresh breadcrumbs”. To make fresh breadcrumbs, just pop some bread slices in the food processor and pulse it a few times. I used homemade bread, but any type of bread will work just fine.

This Zucchini, Squash & Corn Casserole is going to be a staple in our house this spring and summer. This casserole is great for potlucks and cookouts. We are serving it this weekend with our Easter ham!

Zucchini, Squash & Corn Casserole - our favorite side dish! Zucchini, Squash, Corn, Onion, garlic, white cheddar cheese, sour cream, mayonnaise, eggs, breadcrumbs and parmesan cheese. Seriously THE BEST!!! Great make ahead side dish. Perfect for all your potlucks, cookouts and holiday meals! #casserole #zucchini #squash #corn #sidedish #freezermeal

Zucchini, Squash & Corn Casserole - our favorite side dish! Zucchini, Squash, Corn, Onion, garlic, white cheddar cheese, sour cream, mayonnaise, eggs, breadcrumbs and parmesan cheese. Seriously THE BEST!!! Great make ahead side dish. Perfect for all your potlucks, cookouts and holiday meals! #casserole #zucchini #squash #corn #sidedish #freezermeal

Zucchini, Squash & Corn Casserole - our favorite side dish! Zucchini, Squash, Corn, Onion, garlic, white cheddar cheese, sour cream, mayonnaise, eggs, breadcrumbs and parmesan cheese. Seriously THE BEST!!! Great make ahead side dish. Perfect for all your potlucks, cookouts and holiday meals! #casserole #zucchini #squash #corn #sidedish #freezermeal





Zucchini, Squash & Corn Casserole - our favorite side dish! Zucchini, Squash, Corn, Onion, garlic, white cheddar cheese, sour cream, mayonnaise, eggs, breadcrumbs and parmesan cheese. Seriously THE BEST!!! Great make ahead side dish. Perfect for all your potlucks, cookouts and holiday meals! #casserole #zucchini #squash #corn #sidedish #freezermeal
Zucchini, Squash & Corn Casserole - our favorite side dish! Zucchini, Squash, Corn, Onion, garlic, white cheddar cheese, sour cream, mayonnaise, eggs, breadcrumbs and parmesan cheese. Seriously THE BEST!!! Great make ahead side dish. Perfect for all your potlucks, cookouts and holiday meals! #casserole #zucchini #squash #corn #sidedish #freezermeal
Zucchini, Squash & Corn Casserole - our favorite side dish! Zucchini, Squash, Corn, Onion, garlic, white cheddar cheese, sour cream, mayonnaise, eggs, breadcrumbs and parmesan cheese. Seriously THE BEST!!! Great make ahead side dish. Perfect for all your potlucks, cookouts and holiday meals! #casserole #zucchini #squash #corn #sidedish #freezermeal
Zucchini, Squash & Corn Casserole - our favorite side dish! Zucchini, Squash, Corn, Onion, garlic, white cheddar cheese, sour cream, mayonnaise, eggs, breadcrumbs and parmesan cheese. Seriously THE BEST!!! Great make ahead side dish. Perfect for all your potlucks, cookouts and holiday meals! #casserole #zucchini #squash #corn #sidedish #freezermeal
Zucchini, Squash & Corn Casserole - our favorite side dish! Zucchini, Squash, Corn, Onion, garlic, white cheddar cheese, sour cream, mayonnaise, eggs, breadcrumbs and parmesan cheese. Seriously THE BEST!!! Great make ahead side dish. Perfect for all your potlucks, cookouts and holiday meals! #casserole #zucchini #squash #corn #sidedish #freezermeal

Yield: serves 8 to 10

Zucchini, Squash & Corn Casserole

prep time: 15 MINScook time: 45 MINStotal time: 60 mins

ingredients:

  • 1-1/2 lb yellow squash, thinly sliced
  • 1-1/2 lb zucchini, thinly sliced
  • 1/4 cup butter, divided
  • 2 cups diced sweet onion
  • 2 garlic cloves, minced
  • 3 cups corn kernels
  • 1-1/2 cups shredded white cheddar cheese
  • 1/2 cup sour cream
  • 1/2 cup mayonnaise
  • 2 eggs, lightly beaten
  • 2 tsp pepper
  • 1 tsp salt
  • 1-1/2 cups soft breadcrumbs, divided
  • 1 cup grated parmesan cheese, divided

instructions:

  1. Preheat oven to 350ºF. Lightly spray a 9x13x2-inch pan with cooking spray.
  2. Melt 2 Tbsp  of butter in large skillet over medium-high heat. Add zucchini, squash and onion. Sauté for 10 minutes, or until tender. 
  3. Add garlic and cook and additional 2 minutes. Remove from heat.
  4. Stir together cooked zucchini, squash, onion, corn, white cheddar cheese, sour cream, mayonnaise, eggs, salt and pepper. Stir in 1/2 cup of breadcrumbs and 1/2 cup of parmesan cheese. 
  5. Spread mixture into prepared pan.
  6. Melt remaining 2 Tbsp butter. Combine melted butter, remaining breadcrumbs and parmesan cheese. Sprinkle over casserole.
  7. Bake uncovered for 45 to 50 minutes.

MORE VEGETABLE RECIPES:

Black Eyed Peas with Sausage and Jalapenos
Old School Squash Casserole
Smothered Asparagus
Grilled Corn Salad
Three Bean Salad

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Comments

  1. This was delicious. I want to make it again but freeze halfWhen you freeze it, how do you cook it? Do you thaw first or place directly in the oven froze? What temp and how long?

  2. YUMMY DISH!! LOVE IT!!
    Next time I will cook the veggies in 2 batches. It was just too mutch even though I had large pan. I also had lot and lots of liquid after cooking the veggies, I am so glad you mentioned it, I thought I had done something wrong. Perhaps cooking them quicker and at a higher temperature may help!

  3. This was a pretty tasty casserole! It had a slightly weird aftertaste–perhaps the mayo I used. It's a little high in calorie for me to make very often for lunches, since it does have the mayo, sour cream, and breadcrumbs. But, it reheats pretty well, and I didn't get tired of it for a whole week of lunches. Overall I did like it.

  4. Looks like fresh herbs were added. I plan to use chives or green onions instead of the sweet onions. Maybe the green is from breadcrumbs? I feel like I'm missing something!! Looking forward to making this tonight!!

  5. How much does this make? It looks delicious! I'm on weight watchers, so I like to know how much it makes to figure out how many points per cup/other serving size. Thanks for helping with this!

    1. Greek yogurt was what I was thinking – you can add more protein that way.

      Do you think white beans could substitute for corn? Although I like the cauliflower idea too.

  6. Blending the two types of squash together with the cheese and corn does make a very pretty dish. It also sound delicious and very easy to prepare.

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