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Boston Market Squash Casserole

Among the best of Boston Market’s many delicious homestyle sides, this veggie-packed casserole is simple to recreate in your home kitchen.

a bowl of homemade Boston Market squash casserole

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Zucchini and Yellow Squash Casserole

Boston Market may be best known for its mouthwatering rotisserie chickens (and rightly so.) However, those who’ve dined there may find themselves craving the chain’s many delicious sides just as often.

This zucchini and squash casserole is one of the most beloved, fitting in perfectly on a weeknight dinner table or as part of a festive holiday spread. Luckily, it’s as easy to make as it is tasty!

What makes Boston Market squash casserole so good?

The incredible combination of flavors and textures in this squash casserole is what makes this dish a star anytime it hits the table. Offering fresh zucchini, savory onion, and a variety of seasonings and spices mixed with tasty crumbled cornbread, it’s packed with flavor yet versatile enough to pair with a wide selection of mains and other sides.  

Why you’ll love this recipe for your holiday gatherings

Adding this dish to your holiday menu is an easy choice when you consider how easy and affordable it is to make, allowing busy cooks to focus their time on other parts of the meal.

In addition, it can be made ahead of time, cooled and refrigerated, and then reheated in just a few minutes come mealtime. This helps save crucial oven space during bigger meals.

Finally, it’s easy to scale up to larger batches if desired, ensuring you’ll always have enough, no matter how many friends or family show up.   

Ingredients you will need

Here’s what you’ll need to craft a delicious squash casserole:

  • Jiffy corn muffin mix
  • Zucchini
  • Yellow squash
  • Yellow onions
  • Butter
  • Deli American cheese
  • Chicken bouillon cubes
  • Garlic
  • Salt
  • Ground black pepper
  • Dried thyme
  • Fresh parsley 
Ingredients for the Boston Market Squash Casserole

How to make Boston Market Squash Casserole

Despite the delicious flavors, making this casserole is relatively quick and easy.

  1. Prepare Jiffy corn muffins according to package directions. Allow them to cool completely.
  2. Meanwhile, preheat your oven to 350°F. 
  3. Dice the squash and zucchini, then place them in a large saucepan with enough water to cover them. 
  4. Cook the mixture on medium-low heat until tender, then remove from heat and drain it, reserving a cup of the cooking liquid for the casserole.
  5. Melt butter in a large pan over medium-low heat, then add the diced onion. Saute until the onions turn clear. Add salt, pepper, thyme, and parsley as they cook.
  6. Add the bouillon cubes and garlic, followed by the drained squash mixture and the cheese. Stir to combine.
  7. Crumble cornbread into the pan, then add the reserved cooking liquid and mix.
squash casserole mixture in a pan
  1. Spoon vegetable mixture into a greased 13”x11” baking pan. Cover it with foil.
  2. Bake in the preheated oven for 50-60 minutes, removing the foil for the final 20 minutes to allow the top to brown.
homemade Boston Market squash casserole and a serving spoon

What to serve with zucchini and yellow squash casserole

This comfort-food classic goes well with a wide variety of mains and other sides.

As its Boston Market roots might suggest, it’s an excellent choice with roasted chicken or turkey, as well as homestyle favorites like baked ham or meatloaf.

Pair it with sides like carrots, green beans, macaroni and cheese, roasted vegetables, cranberry sauce, and many more holiday-influenced favorites. 

How to store your leftovers

One of the best parts of this delicious squash casserole recipe is how easy it is to store and how well it keeps. Simply allow the casserole to cool fully, then cover it with aluminum foil or transfer it to a sealed container for storage in the fridge. You should eat any leftovers within three to five days.

What’s the best way to reheat it?

To preserve the quality of your Boston Market squash casserole, we recommend reheating it in the oven for a few minutes at 350°F until the casserole is fully warmed through.

Those who need to get it on the table even faster can use the microwave, using short bursts on high until the casserole has been reheated.

homemade Boston Market squash casserole in a bowl

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a bowl of homemade Boston Market squash casserole

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