Vegetarian Broccoli and Cheese Breakfast Casserole

By Rena |

Broccolini and Cheese Breakfast Casserole – A delicious and delightfully nutrition-packed casserole with protein-rich eggs and quinoa, flavorful Italian seasoning, sweet red pepper, and tender broccolini pieces.

top view breakfast casserole with veggies, cheese, in a white dish with spoon in it

This one-pan breakfast meal is satisfying and super easy! A nutrient-dense, protein-packed healthy take-on quinoa and broccoli recipes of old, sans the flour, breadcrumbs, heavy creams, and cheese overload; a cheesy broccoli and quinoa casserole that will become a new family favorite.  

We no longer accept that healthy food is tasteless and boring, and this broccolini quinoa casserole is proof! This healthy breakfast casserole is a convenient one-dish meal that even the kids will love, and they don’t have to know how good it is for them!   

This broccoli and cheese casserole is packed with clean protein like eggs, and vegetables loaded with fiber and antioxidants all incorporated into one dish, is that it tastes great!

Another great breakfast skillet recipe to check out is our Garden Veggie Fritatta.

Why You’ll Love This Broccoli Cheese Quinoa Casserole Recipe

  • Complete and Perfect Protein: This broccolini cheese and quinoa cassrole is a protein powerhouse with two clean protein sources with nine essential amino acids.
  • Nutrient-Dense: There is an abundance of vitamins, minerals, and polyphenols and a low glycemic load in this cheesey broccoli breakfast casserole.
  • Convenient and Easy: Broccoli quinoa casserole can easily be a one-dish meal and travels well for lunches the next day.
  • Great-Tasting and Gluten-Free: It will become a family-pleasing go-to breakfasy meal and easily accommodates variations. Great for meal prepping.
     
top view breakfast casserole in a white dish

Equipment Needed To Make Broccoli Quinoa Casserole

  • Mixing Bowl
  • Measuring Spoons & Cups
  • Baking Dish (the recipe does not clarify size)
  • Cooking Spray

Ingredients For Your Quinoa Broccoli Recipe

  • eggs: use cage-free organic eggs. Or use your favorite.
  • milk: use milk of choice. we prefer 2% milk
  • seasoning: onion powder, garlic powder, Italian seasoning.
  • fresh herbs: we used fresh parsley
  • cooked quinoa
  • bell peppers: use your favorite color bell pepper
  • broccoli or broccolini: if you don’t like broccoli, use any other veggie of choice
  • cheddar cheese: use light or fat-free
ingredients to make broccoli and cheese breakfast casserole

How To Make A Broccoli Cheese Quinoa Casserole

First, preheat the oven to 350F and spray a baking dish with cooking oil spray.

In a mixing bowl, beat the eggs together with the milk, seasonings, and parsley.

chopped broccoli and red peppers on a cutting board

Then, stir in the cooked quinoa, bell pepper, broccolini, and cheese.

Next, spoon the mixture into the prepared baking dish, taking care not to mess around the edges too much. (That is if you care about the looks of your casserole.)

ingredients (cheese, peppers, broccoli) of casserole place in a bowl before cooking

Finally, Cover the dish with aluminum foil. Bake for 45 minutes or until the egg is cooked through and broccolini is tender.

What To Serve/Pair With Your Broccoli Quinoa Casserole Recipe 

top view breakfast casserole in a white dish

Tips and Variations For Broccoli cheese and Quinoa Casserole

  • Inspect and rinse broccolini well, pat dry before chopping.
  • Before cooking quinoa,* rinse to remove the compounds called saponins, plant-derived organic chemicals, that can give the quinoa a bitter taste.
  • Try toasting quinoa before cooking if you haven’t yet jumped on the quinoa bandwagon; it gives this grain a whole new dimension.
  • Variations, Add-ins, and toppings for quinoa broccoli recipes:
    • Diced protein like chicken, sausage, or leftover turkey
    • Feta cheese or herbed goat cheese
    • Shredded carrots and mushroom
    • Blanched and quartered Brussels Sprouts
    • Diced tomatoes and red onion (Add-in or topping)
    • Top with sour cream and pickled jalapenos
top view of spoon in breakfast broccoli casserole in a white dish

Quinoa Broccoli cheese casserole Recipe FAQs

Can I substitute broccoli for broccolini?

Absolutely. If you have everything to make this yummy, cheesy quinoa casserole except broccolini, and no time to run to the store, here are other options that will provide that nice earthy grassy flavor: Chinese broccoli, cauliflower, zucchini, asparagus, spinach, or kale

Can I use frozen broccoli in a quinoa casserole instead of fresh?

Yes, you can use frozen broccoli, but it should be thoroughly thawed and drained. Fortunately, most frozen broccoli is bagged now instead of frozen into those neat little 4 x 6” boxes of old, which made for a good solid green block of ice. However, either type can be placed in a colander with a plate under it and allowed to thaw. Once the broccoli has thawed and drained, pat dry with paper towels or a clean, lint-free cotton cloth.

Can I substitute rice for the quinoa?

Yes, but let’s make that a “healthy” no. Rice is in no way even exchange nutritionally for quinoa. While they both are just a smidge over 200Kcal per cup, that’s where the similarity ends. Quinoa would be a much healthier option. If you must, use brown rice.

top view breakfast casserole on a white dish

More healthy breakfast recipes to try

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top view of broccoli cheese breakfast casserole with spoon in it

Broccoli Cheese Breakfast Casserole

Easy to make breakfast casserole recipe loaded with protein and veggies. Perfect vegetarian breakfast recipe that the whole family can enjoy.
5 from 1 vote
Print Pin Rate
Course: Breakfast
Cuisine: American
Diet: Vegetarian
Prep Time: 10 minutes
Cook Time: 45 minutes
Total Time: 55 minutes
Servings: 8
Calories: 179kcal
Author: Rena

Ingredients

  • 6 large eggs beaten
  • 1/2 cup milk of choice
  • 1 tsp onion powder
  • 1 tsp garlic powder
  • 1 tsp Italian seasoning
  • 1/4 cup fresh parsley chopped
  • 2 cups cooked quinoa
  • 1 large red bell pepper diced
  • 12 oz broccolini or broccoli finely chopped
  • 1 1/2 cups cheddar cheese shredded

Instructions

  • Preheat the oven to 350F and spray a baking dish with cooking oil spray.
  • In a mixing bowl, beat the eggs together with the milk, seasonings, and parsley.
  • Stir in the cooked quinoa, bell pepper, broccolini, and cheese.
  • Spoon the mixture into the prepared baking dish, taking care not to mess around the edges too much. (That is if you care about the looks of your casserole.)
  • Cover the dish with aluminum foil. Bake for 45 minutes or until the egg is cooked through and broccolini is tender.

Notes

  • Variations, Add-ins, and toppings for quinoa broccoli recipes:
    • Diced protein like chicken, sausage, or leftover turkey
    • Feta cheese or herbed goat cheese
    • Shredded carrots and mushroom
    • Blanched and quartered Brussels Sprouts
    • Diced tomatoes and red onion (Add-in or topping)
    • Top with sour cream and pickled jalapenos

Nutrition

Calories: 179kcal | Carbohydrates: 16g | Protein: 14g | Fat: 6g | Saturated Fat: 2g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 2g | Trans Fat: 1g | Cholesterol: 145mg | Sodium: 207mg | Potassium: 231mg | Fiber: 2g | Sugar: 3g | Vitamin A: 1832IU | Vitamin C: 68mg | Calcium: 175mg | Iron: 2mg
Tried this Recipe? Tag me Today!Mention @HealthyFitnessMeals or tag #HealthyFitnessMeals!

Reader Interactions

Comments

    • Rena says

      Hi Luci. I am so sorry. Not sure where the word red came from. I would want to know where to buy red cheddar cheese too. Lol. It’s just Cheddar Cheese.

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