Cheesy Broccoli Rice Casserole
This dairy-free casserole remakes the classic cheesy broccoli-rice bake with a creamy cashew and nutritional-yeast sauce spooned over brown rice and tender broccoli, then baked until hot and golden.
Why You'll Love This Recipe
The original version leans on canned soup and shredded cheddar, but you don't need either for the same creamy, savory result. Soaked cashews blend into a smooth base, and nutritional yeast brings the cheesy, slightly nutty flavor you remember. Garlic and onion round it out so every forkful tastes seasoned rather than flat. If you have skipped this dish because of dairy, this is a way back to it that still feels familiar and comforting on a weeknight.
Brown rice keeps the base hearty and adds fiber that white rice can't match, while the broccoli holds its shape and color when you steam it just until bright green. Blanching briefly matters here: cook it too long and it turns gray and soft, cook it right and it stays a little firm through baking. The cashew sauce coats each grain and floret, so the casserole holds together in tidy squares instead of sliding apart on the plate.
Baked in one dish, this works as a full dinner for four or as a side next to roast chicken or beans. It reheats well, which makes it useful for lunches later in the week, and the ingredient list stays short and easy to find. You cook the rice ahead or use leftovers, blend the sauce while the broccoli steams, and the whole thing comes together without much fuss. It is the kind of dish you can make on repeat.
Ingredients
- 4 cups broccoli florets
- 2 1/2 cups cooked brown rice
- 3/4 cup raw cashews, soaked
- 1/4 cup nutritional yeast
- 1 onion, diced
- 3 cloves garlic
- 1 tbsp olive oil
- 1/2 tsp salt
Instructions
- Soak the cashews: Cover 3/4 cup raw cashews with just-boiled water and let them soak at least 15 minutes while you prep, or up to 4 hours; drain before blending so they turn into a smooth sauce.
- Steam the broccoli: Steam or blanch 4 cups broccoli florets for 2 to 3 minutes, just until bright green and barely tender, then drain well; stop short of fully soft since they finish cooking in the oven.
- Soften the aromatics: Warm 1 tablespoon olive oil in a skillet over medium heat and cook the diced onion for 5 to 6 minutes until soft and translucent, adding the garlic for the last minute so it turns fragrant without browning.
- Blend the cheese sauce: Add the drained cashews, 1/4 cup nutritional yeast, the cooked onion and garlic, 1/2 teaspoon salt, and about 3/4 cup water to a blender; blend until completely smooth and pourable, adding a splash more water if it drags.
- Fold and assemble: In a large bowl, combine 2 1/2 cups cooked brown rice, the broccoli, and the cheese sauce, folding gently until everything is coated, then spread it into a lightly oiled 8-by-8-inch baking dish.
- Bake until golden: Bake at 375°F (190°C) for about 20 minutes, until the casserole is hot throughout and the top turns light golden; let it rest 5 minutes so the squares set before you cut and serve.
Variations
- Add plant protein: Fold in a cup of rinsed white beans or chickpeas before baking to make the squares heartier and add a few more grams of protein.
- Lower-carb swap: Use riced cauliflower in place of some or all of the brown rice for a lighter, lower-carb version that still soaks up the sauce.
- Warm the spice: Stir a pinch of red pepper flakes or a little smoked paprika into the sauce for gentle heat and a deeper savory edge.
- More vegetables: Add cauliflower florets, peas, or diced carrots along with the broccoli to stretch the dish and work in extra color.
- Crunchy top: Scatter a thin layer of seasoned breadcrumbs or crushed crackers over the top before baking for a crisp, golden finish. Use certified gluten-free ones, since standard breadcrumbs and crackers add gluten.
Storage & Leftovers
Let the casserole cool, then cover it or move squares to an airtight container and refrigerate for up to four days. The cashew sauce firms up as it chills, which is normal and makes it easy to lift clean portions for lunch.
To freeze, wrap individual squares well and store them for up to two months. Thaw overnight in the fridge before reheating so the rice warms evenly. Freezing can soften the broccoli a little, so expect a slightly more tender texture than the fresh-baked version.
Reheat portions in the microwave until steaming, stirring once to spread the heat, or warm them in a 350°F (175°C) oven covered with foil. If the sauce looks thick, stir in a splash of water or unsweetened plant milk to loosen it back to creamy.
Notes & Tips
- Quick-soak the cashews: If you are short on time, cover the cashews with just-boiled water for 15 minutes; the hot soak softens them enough to blend smooth.
- Use a strong blender: A high-speed blender gives the silkiest sauce, but a standard one works if you soak the cashews longer and stop to scrape the sides.
- Watch the broccoli: Pull the broccoli off the heat while it is still bright and slightly firm, since it keeps cooking as the casserole bakes.
- Taste the sauce: Season the blended sauce before folding it in, adding more nutritional yeast for cheesiness or a pinch of salt to sharpen the flavor.
- Reach for day-old rice: Cooled, day-old brown rice holds its texture better than fresh, warm rice and keeps the finished squares from turning mushy.
- Chase a golden top: For a deeper color, run the casserole under the broiler for a minute or two at the end, watching closely so it does not scorch.
Nutrition & Mindful Eating
- Broccoli, brown rice and the cashew sauce need each other here. The rice gives the dish its bulk, the broccoli keeps it from going soft all the way through, and the sauce binds the two into something you can serve with a spoon.
- Soaked cashews blended smooth are what make the sauce pourable and rich. They bring plant protein and unsaturated fat, and they thicken on their own as the casserole bakes, so the top sets rather than staying loose.
- Broccoli holds its shape through the bake and stays recognizable in every scoop, the florets catching sauce in their tops, and the vitamin C and folate the vegetable carries come through in that fresh green bite.
- Brown rice keeps its bran and germ, which is what gives it a firmer chew after a long bake and the fiber that makes a dish this size sit well.
- Diced onion softened in olive oil goes sweet before it ever meets the oven, garlic gives the sauce its backbone, and the nutritional yeast is where the savory, cheesy edge on top comes from once the casserole browns.
- As you eat, taste the difference between the browned top and the soft rice beneath it, and give the dish your attention for a few bites so you can feel the point where you are satisfied.
Frequently Asked Questions
Can I make this nut-free instead of using cashews?
Yes; swap the cashews for an equal amount of raw sunflower seeds or silken tofu, soaking the seeds first so the sauce still blends smooth and creamy.
Can I lower the carbs with cauliflower rice?
Absolutely; replace some or all of the brown rice with riced cauliflower to cut the carbs, though the texture will be softer and a little more moist.
Can I make it ahead and reheat later?
Yes; assemble and bake it, then refrigerate up to four days and reheat squares in the microwave or a covered 350°F (175°C) oven, adding a splash of water if the sauce thickened.
How much carbohydrate does this carry?
Brown rice makes this a moderate-carbohydrate dish, so it works best as the center of the plate rather than alongside another starch. Swap in cauliflower rice if you want it lighter.