Tag Archives: squash

Spaghetti Squash Casserole



“You used to make this all the time.  I love this!”

MoonDog loves his veggies.  And so do I.  This casserole makes you feel like you are the healthiest person on the planet.  Rich and satisfying, yet chock full of heart-healthy veggies. Not a favorite of my kids, but no casseroles really are.  My husband and my sister love this dish.  My sister gets the vegetarian version of this, which is really easy to do, as I will describe.

Spaghetti Squash Casserole


  • 3 Tbsp oil
  • 1 cup sliced mushrooms
  • ¼ cup chopped celery
  • ½ cup chopped peppers (green or red)
  • 2 boneless chicken breasts, cooked and diced or pulled
  • 1 small to medium spaghetti squash cooked (directions below)
  • ¼ cup dried breadcrumbs, 1/8 cup reserved
  • ½ tsp each of Salt, pepper, garlic powder, basil, oregano
  • ½ cup plain greek yogurt, or sour cream
  • ½ cup shredded cheese (cheddar, swiss, or parmesan are good)


First make the squash. There are probably lots of ways to do this, but I always do it like this:

Get a 9x13 pyrex or oven baker and spray it.

Fill this baker with 1 inch of water in the bottom.

Cut your squash lengthwise in half. Be Careful! Squash are slippery, and kind of clumsy.

Seed the squash and then place open side down in the water. Bake at 400* for about 30 minutes or until the squash meat pulls like spaghetti. Set aside to cool.

While the squash cools, heat up a large skillet on the stove.

Add the oil and cook the mushrooms, celery and bell pepper until tender. Add the cooked chicken, herbs, ¼ cup breadcrumbs, squash for about 5 minutes. Add in the sour cream and the cheese.

Spoon all of this huge mixture into a greased 9x13 casserole, sprinkling with the reserved 1/8 cup breadcrumbs.

Bake for 25 minutes with a top on and another 10 with foil off to brown the topping.


This is a great make-ahead or freeze ahead dinner. I have also made this all vegetarian, by eliminating the chicken and adding 1 cup of cooked leeks, or cooked broccoli. It is very friendly to using what you have on hand or leftover!