A colorful, slightly creamy quinoa casserole studded with tender broccoli, bell peppers and lean chicken, finished with a golden cheddar-panko topping for a balanced weeknight dinner.
A Colorful Weeknight Casserole That Actually Feels Cozy
This rainbow broccoli–cheddar quinoa bake turns pantry quinoa and leftover chicken into a slightly creamy, crunchy-topped dinner that’s as bright as it is satisfying.
Think of this as a no-fuss, all-in-one dinner that answers the perennial weeknight question: ‘What’s quick, balanced, and nobody-complains-about-it?’ Fluffy quinoa forms the base, tender broccoli and sweet red and yellow peppers add pops of color and texture, and shredded chicken stretches a little protein into four generous servings. A golden cheddar-and-panko crust finishes the whole thing with a pleasing crunch.
The play of textures is what makes this dish sing — light, lemony-ish quinoa (use low-sodium chicken broth for extra flavor), quick-sautéed onions and grated carrot for subtle sweetness, and garlic to knit everything together. Eggs help the casserole set into a slightly creamy sliceable bake while cheddar melts into pockets of savory richness. Steaming the broccoli just until bright and tender keeps it from turning mushy in the oven.
Small technique notes that lift the result: always rinse quinoa to remove any bitterness, let it sit and fluff after cooking, and cool the hot quinoa a bit before you mix in the eggs so they don’t scramble. A lightly oiled 8×8 baking dish is just right — bake at 375°F until the center is set and the top is bubbling and golden.
Make-ahead friendly: assemble the casserole and refrigerate for up to a day, or bake and freeze portions for easy lunches. Swap in sharp cheddar for more bite, use cooked rotisserie chicken to speed things up, or skip the chicken and add white beans for a vegetarian version. Reheat in the oven to revive that crunchy top and enjoy a dinner that feels both bright and comfortably homey.
Ingredients
How to Make Rainbow Broccoli Cheddar Quinoa Bake
- Preheat the oven to 375°F (190°C). Lightly oil an 8x8-inch (or similar) baking dish and set aside.
- Rinse the quinoa in a fine-mesh sieve under cold water, then combine with the chicken broth in a medium saucepan; bring to a boil, reduce to a simmer, cover, and cook until liquid is absorbed (about 15 minutes). Remove from heat and let sit covered 5 minutes, then fluff with a fork.
- While quinoa cooks, chop the red and yellow bell peppers into 1/2-inch pieces, thinly slice the red onion, peel and grate the carrot, mince the garlic, and cut the broccoli into small florets; if broccoli stems are thick, slice them thinly.
- Heat olive oil in a large skillet over medium heat. Add the onion and carrot and cook 3–4 minutes until softened, then add garlic and peppers and cook 2 minutes more. Add broccoli and 2–3 tablespoons water, cover, and steam 2–3 minutes until bright and just-tender; remove from heat and let cool slightly.
- Shred or chop the cooked chicken breast into bite-size pieces and grate the cheddar if it isn’t pre-shredded.
- In a large bowl, combine the cooked quinoa, sautéed vegetables, chicken, 1 cup of the cheddar, eggs, Dijon mustard, lemon juice, salt, and black pepper; stir until evenly mixed.
- Transfer the mixture to the prepared baking dish, smooth the top, sprinkle with the remaining 1/2 cup cheddar and panko breadcrumbs, and bake until set and golden on top, about 20–25 minutes. If the top browns too quickly, tent lightly with foil.
- Let the bake rest 10 minutes before slicing to firm up. Garnish with chopped fresh parsley and serve warm; leftovers keep covered in the refrigerator 3–4 days.
Recipe Card
Rainbow Broccoli Cheddar Quinoa Bake
A colorful, slightly creamy quinoa casserole studded with tender broccoli, bell peppers and lean chicken, finished with a golden cheddar-panko topping for a balanced weeknight dinner.
- Prep
- 20 min
- Cook
- 40 min
- Servings
- 4
Ingredients
Instructions
- Preheat the oven to 375°F (190°C). Lightly oil an 8x8-inch (or similar) baking dish and set aside.
- Rinse the quinoa in a fine-mesh sieve under cold water, then combine with the chicken broth in a medium saucepan; bring to a boil, reduce to a simmer, cover, and cook until liquid is absorbed (about 15 minutes). Remove from heat and let sit covered 5 minutes, then fluff with a fork.
- While quinoa cooks, chop the red and yellow bell peppers into 1/2-inch pieces, thinly slice the red onion, peel and grate the carrot, mince the garlic, and cut the broccoli into small florets; if broccoli stems are thick, slice them thinly.
- Heat olive oil in a large skillet over medium heat. Add the onion and carrot and cook 3–4 minutes until softened, then add garlic and peppers and cook 2 minutes more. Add broccoli and 2–3 tablespoons water, cover, and steam 2–3 minutes until bright and just-tender; remove from heat and let cool slightly.
- Shred or chop the cooked chicken breast into bite-size pieces and grate the cheddar if it isn’t pre-shredded.
- In a large bowl, combine the cooked quinoa, sautéed vegetables, chicken, 1 cup of the cheddar, eggs, Dijon mustard, lemon juice, salt, and black pepper; stir until evenly mixed.
- Transfer the mixture to the prepared baking dish, smooth the top, sprinkle with the remaining 1/2 cup cheddar and panko breadcrumbs, and bake until set and golden on top, about 20–25 minutes. If the top browns too quickly, tent lightly with foil.
- Let the bake rest 10 minutes before slicing to firm up. Garnish with chopped fresh parsley and serve warm; leftovers keep covered in the refrigerator 3–4 days.
Nutrition
- Carbohydrates
- 40
- Saturated Fat
- 5
- Sodium
- 520
- Fiber
- 6
- Unsaturated Fat
- 8
- Protein
- 34
- Fat
- 13
- Cholesterol
- 90
- Trans Fat
- 0
- Calories
- 450
- Sugar
- 4