This post may contain affiliate links. Please read our disclosure policy.
Broccoli and Cheese Breakfast Casserole is a delicious and filling casserole with protein-rich eggs and quinoa, flavorful Italian seasoning, sweet red pepper, and tender broccolini pieces.

This one-pan breakfast meal is satisfying and super easy! So filling, tasty, and will become a new family favorite. It is made with loads of veggies, eggs, and then baked in the oven. A convenient one-dish meal that even the kids will love, and they don’t have to know how good it is for them!
Another great breakfast skillet recipe to check out is our Garden Veggie Frittata.
Recipe summary
- 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 breakfast meal and easily accommodates variations. Great for meal prepping.
Ingredients needed
Below is a list of ingredients you will need to make this casserole dish. Full measurements are listed further down in the recipe card.
- eggs: use cage-free organic eggs. Or use your favorite.
- milk: use milk of choice. I prefer 2% milk
- Seasoning: onion powder, garlic powder, Italian seasoning.
- fresh herbs: I 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
How To Make 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.
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.)
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 it with
- Easy Marinated Tomatoes
- Air Fryer Zucchini Chips
- Creamed Peas
- Avocado Cucumber Tomato Salad
- Baked Garlic Butter Hasselback Potatoes
Tips and Variations
- 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
Common Questions
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
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.
Yes. Feel free to add any other veggies you have on hand.
You may also like
- Healthy Oatmeal Bars
- Strawberry Chia Seed Pudding
- Healthy Apple Walnut Bread
- Chocolate Oatmeal Pancake
- Steel Cut Oat Breakfast Bowl
- Apple Cinnamon Oatmeal
Also, if you try a recipe and you like it, leave me some feedback in the comment section below, and don’t forget to rate it! I would love it if you shared it with friends and family.
FOLLOW me on FACEBOOK | INSTAGRAM | PINTEREST | TWITTER for all of my latest blog posts and recipes.
Iโve never seen red cheddar cheese. Where do I find this?
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.