Skip to Content

Quinoa Casserole with Three Cheeses

This post may contain affiliate links and/or codes. You won’t pay anything extra, but I might make a commission.

Quinoa Casserole in a square glass baking dish.

NOT a mac and cheese substitute

I made this for dinner last night, for probably the 15th or 20th time. It started out as a Plated recipe (I miss Plated, it was my favorite of all the meal kits!), and quickly made its way into my recipe rotation.

Thanks to all of the dairy, this recipe tastes truly indulgent, and the ingredients might make you think that it’s trying to be mac and cheese without the mac. But I would never want to replace the quinoa with pasta. The flavors and textures in this are perfect!

I made it easier

I’ve changed this recipe a lot over the years. Mostly I made it quicker and easier. The original involved fresh kale, a lot of prep, and an extra pan. And while it tasted great, frozen spinach tastes just as good with less fuss.

The best way to squeeze out spinach

The only annoying thing about frozen spinach is squeezing out the water. But I use a potato ricer, which definitely makes it easier!

I have this ricer, which I love, and I also have this one, which is similar. If you do decide to squeeze out thawed spinach this way, which I highly recommend, only do half of a 10-ounce package at once. If you fill the ricer and squeeze, some of the spinach will shoot out of the top and go everywhere. Ask me how I know.

Double it!

This recipe gives you four very filling, main course-size servings. If you’re using it as a side dish, the recipe would make at least six servings.

If you’re serving a bigger crowd, you could easily double it. Just use a larger pot to cook everything in, and bake it in a 13x9x2 baking dish.

I don’t recommend making it in a deeper casserole dish, because it wouldn’t be in the oven long enough to really cook the middle, and if you leave it in longer I suspect that the top would get way too brown.

If you really wanted to try, you could bake it for a while with foil on top, and then remove the foil for the last 15 minutes. But I haven’t tried this. Please let me know if you do!

Yield: 4 servings

3 Cheese Quinoa Casserole Recipe

Quinoa Casserole in a square glass baking dish.

This delicious casserole tastes indulgent, but is packed with nutritious ingredients.

Prep Time 15 minutes
Cook Time 35 minutes
Additional Time 5 minutes
Total Time 55 minutes

Ingredients

  • 1 tablespoon olive oil
  • 1 large clove garlic, minced or zested
  • 1 shallot, peeled and minced
  • 2½ cups water
  • 12 ounces sweet potatoes, peeled, halved lengthwise, and cut into ¼-inch slices
  • ⅔ cup uncooked white quinoa
  • 8 ounces whole milk
  • 1 egg yolk
  • 10-ounce package frozen spinach, thawed and squeezed dry
  • 1½ ounce sharp cheddar cheese, shredded
  • 1½ ounce part-skim mozzarella cheese, shredded
  • ½ ounce Romano cheese, shredded or grated
  • Kosher salt
  • Ground black pepper

Instructions

    1. Preheat oven to 425°F with a rack in the middle position
    2. Heat the olive oil in a medium saucepan over medium-low heat
    3. When oil is warm, add the garlic and shallot and sauté, stirring frequently, until softened, 3-4 minutes
    4. Add the water, sweet potatoes, quinoa, and 1/2 teaspoon kosher salt, and give it a good stir
    5. Increase the heat to high and bring to a boil, then continue cooking, stirring frequently, until the quinoa is tender, the sweet potatoes are cooked, and the water has been absorbed (about 10 minutes once the water is boiling; for the last couple of minutes, you may want to reduce the heat a bit to keep the quinoa from sticking, stirring almost constantly)
    6. While that's cooking, measure out the milk into a larger measuring pitcher or a bowl, and mix in the egg yolk with a fork until it's completely mixed in; set aside
    7. Remove from the heat and stir in the spinach, milk and egg mixture, cheddar cheese, and mozzarella cheese
    8. Transfer to an 8-inch square baking dish (or other shaped dish of equivalent size) and smooth the top, then sprinkle on the Romano cheese
    9. Place baking dish in the oven and bake until the Romano cheese is melted and golden 12-15 minutes
    10. Remove from the oven and let cool for about 5 minutes before serving

Notes

Can easily be doubled. Just use a stockpot instead of a sauce pan, and bake it in a 13x9x2-inch baking dish.

Recommended Products

As an Amazon Associate and member of other affiliate programs, I earn from qualifying purchases (but you won't pay anything extra!)

Nutrition Information

Yield

4

Serving Size

1

Amount Per Serving Calories 317Total Fat 15gSaturated Fat 6gTrans Fat 0gUnsaturated Fat 7gCholesterol 75mgSodium 441mgCarbohydrates 33gFiber 7gSugar 10gProtein 15g

Nutritional information is an estimate only.

Did you make this recipe? I'd love to see it!

Please leave a comment, a great star rating, or share what you made on Instagram, tagging @amyoztan. It really helps me out!

HTML tags are not allowed.

131,101 Spambots Blocked by Simple Comments

Privacy Policy ~ Full Disclosure ~ Disclaimer
Skip to Recipe