Cheesy Broccoli Quinoa Bake

Ingredients

• 185 g (1 cup)uncooked quinoa, white, red or tri-colour
• 480 ml (2 cups)vegetable stock or water
• 360 g (4 cups)fresh broccoli florets
• 15 ml (1 tablespoon)olive oil
• 1 mediumyellow onion, finely chopped
• 2–3 clovesgarlic, minced
• 42 g (3 tablespoons)unsalted butter
• 24 g (3 tablespoons)plain flour or gluten-free flour blend
• 480 ml (2 cups)milk, dairy or unsweetened plant-based
• 5 ml (1 teaspoon)Dijon mustard
• 2.5 ml (½ teaspoon), or to tastesalt
• 1.25 ml (¼ teaspoon)freshly ground black pepper
• 1 pinch, optionalnutmeg
• 250 g (2½ cups), dividedshredded mature Cheddar cheese
• 50 g (½ cup), optionalshredded Gruyère or Monterey Jack cheese
• 25 g (¼ cup), optionalbreadcrumbs or crushed crackers
• 14 g (1 tablespoon), if using the toppingmelted butter

Instructions

1. 1

   Cook the quinoa

   Rinse the quinoa thoroughly under cold water until the water runs clear. Put it in a medium saucepan with the stock or water and bring to the boil over medium-high heat. Turn the heat to low, cover tightly and simmer for 15 minutes, until the liquid is absorbed and the quinoa is fluffy. Take it off the heat and leave covered for 5 minutes, then fluff with a fork.

2. 2

   Prepare the broccoli

   While the quinoa cooks, steam the broccoli for 3–4 minutes until tender but still bright green, or blanch it in boiling water for 2 minutes and immediately transfer it to an ice bath. Drain thoroughly. You can instead use raw broccoli for a firmer result, but it will need a little longer in the oven.

3. 3

   Sauté the aromatics

   Heat the olive oil in a large frying pan or saucepan over medium heat. Add the chopped onion and cook for 5–7 minutes, until softened and translucent. Stir in the garlic and cook for 1 minute, taking care not to let it burn.

4. 4

   Make the roux

   Melt the butter in the pan with the onion and garlic. Whisk in the flour and cook, whisking constantly, for about 1–2 minutes, until it forms a paste.

5. 5

   Add the milk

   Pour in the milk gradually, whisking continuously. Begin with a small amount so it blends smoothly with the roux, then add the rest. Bring the sauce to a gentle simmer while continuing to whisk.

6. 6

   Thicken and season

   Simmer and whisk for 3–5 minutes, until the sauce is thick enough to coat the back of a spoon. Reduce the heat to low and stir in the Dijon mustard, salt, pepper and optional nutmeg.

7. 7

   Melt the cheese

   Take the sauce off the heat. Gradually stir in 2 cups of the Cheddar and the optional Gruyère or Monterey Jack, if using, until the cheese melts and the sauce is smooth. Taste and adjust the seasoning if needed.

8. 8

   Combine the ingredients

   Heat the oven to 190°C (375°F) and lightly grease a 9 × 13-inch baking dish or a similar 2.5–3-quart casserole dish. In a large bowl, gently mix the cooked quinoa, prepared broccoli and cheese sauce until evenly coated.

9. 9

   Fill the dish

   Transfer the mixture to the prepared baking dish and spread it out evenly.

10. 10

    Add the topping

    Scatter the remaining ½ cup of Cheddar over the mixture. If using the optional crumb topping, mix the breadcrumbs or crushed crackers with the melted butter and sprinkle over the cheese.

11. 11

    Bake until golden

    Bake for 20–25 minutes, until heated through, bubbling around the edges and lightly golden on top. For a browner finish, switch the oven to the grill setting for the final 1–2 minutes, watching closely to prevent burning.

12. 12

    Rest and serve

    Leave the bake to rest for 5–10 minutes before serving so the sauce can set slightly.

What is a broccoli quinoa bake?

It is a baked casserole combining cooked quinoa and broccoli with a creamy cheese sauce. This version takes the familiar idea of a cheesy vegetable bake and uses quinoa as its hearty base.

Quinoa is native to the Andes, while this particular bake is a modern, flexible casserole rather than a traditional regional dish. Cooking the quinoa separately and lightly pre-cooking the broccoli helps each ingredient keep its texture in the oven.

Nutrition and macros by portion

The nutrition label shows one serving as written: 450 calories, 0g protein, 0g carbs, 0g fat.

Quinoa provides most of the carbohydrates, while the butter, milk and cheeses contribute much of the fat; the quinoa, milk and cheese also contribute protein. Serve it with a fresh salad or extra vegetables to round out the plate.

Rinse and cook the quinoa

Rinsing: Wash the quinoa under cold water until the water runs clear to remove its natural coating, which can taste bitter.

Simmering: Keep the pan covered over low heat for 15 minutes, then let the quinoa stand covered for 5 minutes. The grains should be fluffy, with their little tails unfurled, before you mix them into the sauce.

Keep the broccoli bright

Pre-cooking: Steam the florets for 3–4 minutes or blanch them for 2 minutes, then drain well. They should be tender-crisp rather than fully soft, as they will cook further in the oven.

Cutting: Make the florets bite-sized and reasonably even so they cook at a similar rate. Any water left on the broccoli can loosen the sauce.

Build a smooth cheese sauce

Roux: Cook the flour in the melted butter for 1–2 minutes, whisking all the while. This gives the sauce its thickening base.

Milk and cheese: Add the milk gradually to help avoid lumps, then simmer until the sauce coats the back of a spoon. Take the pan off the heat before adding the cheese, so it melts into the sauce without being cooked too vigorously.

Look for these doneness cues

Before baking: The quinoa should be fluffy, the broccoli drained and the sauce smooth enough to coat the ingredients evenly. Spread the mixture level in the dish for consistent heating.

After baking: Look for bubbles around the edges and melted, lightly golden cheese on top after 20–25 minutes. Resting it for 5–10 minutes helps the sauce set and makes serving easier.

Serve it your way

On the side: A crisp green salad or simply dressed leaves bring a fresh contrast to the creamy bake. Steamed green beans also make a straightforward accompaniment.

For a fuller meal: Serve it as the main dish, or offer a smaller portion alongside roasted vegetables. The recipe already combines grains, vegetables and cheese in one casserole.

Recipe notes & tips

• Rinse the quinoa thoroughly to clear away its bitter-tasting natural coating.
• Cut broccoli into evenly sized florets so it cooks at a similar rate.
• Drain steamed or blanched broccoli well before mixing it with the sauce.
• Whisk in the milk gradually to help keep the sauce smooth.
• Shred the cheese finely so it melts readily into the warm sauce.
• Watch the dish closely if you use the grill setting to brown the topping.

Variations

• Choose your quinoa: White, red or tri-colour quinoa all work in this bake.
• Swap the cheese: Use Gruyère for a nuttier flavour or Monterey Jack for a milder, creamier result.
• Make it gluten-free: Use a gluten-free flour blend and gluten-free breadcrumbs or crackers.
• Use plant-based milk: Choose unsweetened almond or soy milk for the sauce.
• Skip the crumbs: Leave off the optional topping and finish with the reserved Cheddar.
• Use raw broccoli: Mix it in without pre-cooking for a firmer texture and allow extra baking time.

Common mistakes to avoid

• Skipping the rinse: Unrinsed quinoa can taste bitter; wash it under cold water until the water runs clear.
• Leaving broccoli wet: Excess water can thin the bake; drain the florets thoroughly before mixing.
• Adding milk all at once: The roux may become lumpy; pour it in gradually while whisking.
• Boiling the cheese sauce hard: This can affect its smooth texture; melt the cheese into the sauce off the heat.
• Overbaking: The broccoli can become too soft; check the dish once it is hot and bubbling at the edges.
• Walking away from the grill: The topping can brown quickly; watch it continuously during the final 1–2 minutes.

How to store

Cool leftovers and store them covered in the fridge for up to 3 days. Reheat individual portions in the microwave or warm the covered dish in the oven until heated through.

Frequently asked questions