Roasted Veggie Quinoa Bowl with Lemon Garlic Dressing

This roasted veggie quinoa bowl is one of my favorite meal-prep lunches, with warm quinoa and caramelized vegetables, cool creamy avocado, crunchy pepitas, and a bright lemon garlic dressing. It’s colorful, filling, and nourishing—the kind of lunch I’m genuinely happy to find waiting in the fridge.

A Bowl Worth Prepping

This is one of those recipes I developed before I had fully defined Maplevine Kitchen’s focus on simple yet sophisticated seasonal cooking, but I’ve kept coming back to it because it’s such a good lunch. The combination of warm quinoa and roasted vegetables with cool avocado, fresh spinach, crunchy pepitas, and garlicky lemon dressing is satisfying without feeling heavy.

Sweet potato and cauliflower give it a natural place among my fall recipes, though I happily make this quinoa grain bowl year-round. It’s especially appealing after the holidays, when I’m craving something colorful, nourishing, and easy to prepare ahead.

The trick to meal prepping it is keeping the components separate. I reheat the quinoa and roasted vegetables, then add the spinach, avocado, toasted pepitas, and dressing so every part keeps its own flavor and texture.

Ingredient Notes

See the recipe card below for the full ingredient list and measurements.

• Quinoa: Its mild, nutty flavor gives the bowl a hearty base without competing with the vegetables or dressing. Cook it in vegetable broth instead of water for a little more savory flavor.
• Sweet potato and cauliflower: This combination gives you creamy sweetness from the sweet potato and lightly caramelized, crisp-edged cauliflower. Cutting both into similarly sized pieces helps them cook at the same rate.
• Borsari seasoning: I especially like Borsari’s savory blend seasoned salt with lavender for roasted vegetables. The blend is savory and aromatic with a subtle herbal note that makes this bowl a little different. I’ve included a homemade seasonal seasoning blend in the recipe notes, and a simple mix of salt, pepper, garlic, and dried herbs also works.
• Baby spinach: The spinach adds freshness and softens slightly when layered with the warm quinoa and vegetables. Keep it separate until serving if you’re meal prepping.
• Avocado: Cool, creamy avocado is an important contrast to the warm roasted ingredients. Cut it just before serving to keep it fresh and green.
• Toasted pepitas: These add the crunch the bowl needs. I usually buy them already toasted, which keeps things easy.
• Lemon-garlic dressing: Fresh lemon juice, garlic, Dijon, and extra-virgin olive oil make a bright, garlicky dressing with a lightly creamy texture once emulsified.

How to Make a Roasted Veggie Quinoa Bowl

Step 1: Roast the vegetables

Season the sweet potato and cauliflower with olive oil and Borsari seasoning. Spread them between two baking sheets and roast until tender with browned edges.

Step 2: Cook the quinoa

While the vegetables roast, cook the quinoa in vegetable broth or water. Fluff it with a fork and let it rest briefly.

Step 3: Make the Lemon Garlic Dressing

Whisk together the lemon juice, garlic, Dijon, and salt. Slowly whisk in the olive oil until the dressing looks lightly creamy and emulsified.

Step 4: Assemble the veggie bowls

Layer the spinach, warm quinoa, and roasted vegetables. Add the avocado and toasted pepitas, then spoon the lemon-garlic dressing over the top.

Optional Additions and Seasonal Swaps

This quinoa veggie bowl is filling as written, so you don’t need to add a separate protein. Still, it’s easy to adjust based on what you have or what looks good at the market.

• Change the vegetables: Try carrots, broccoli, Brussels sprouts, parsnips, winter squash, zucchini, or bell peppers. My roasted carrots and cauliflower make an easy cool-weather variation, while charred broccolini gives the bowl a bright spring spin.
• Swap the grain: Farro, brown rice, or wild rice can replace the quinoa. Keep in mind that cooking times and liquid amounts will vary.
• Add protein if you’d like: Roasted chickpeas, baked tofu, grilled chicken, or salmon would all work with the lemon-garlic dressing.
• Try another green: Baby kale or arugula can stand in for the spinach. Kale is the sturdier choice for meal prep, while arugula adds a peppery bite.
• Change the finishing touches: Crumbled feta, goat cheese, sunflower seeds, toasted almonds, or fresh herbs are all good alternatives to avocado and pepitas.

Meal Prep, Storage, and Reheating

For the best meal-prep quinoa bowls, store the components separately rather than assembling everything at once. The cooked quinoa, roasted vegetables, dressing, spinach, and pepitas will keep well in separate covered containers in the refrigerator for up to 4 days.

When you’re ready for lunch, reheat one portion of quinoa and roasted vegetables in the microwave until warmed through. Add the spinach, freshly cut avocado, toasted pepitas, and lemon-garlic dressing afterward. This keeps the greens from wilting, the pepitas from softening, and the avocado fresh.

If you prefer to portion everything in advance, place the quinoa and vegetables together in your lunch containers. Pack the spinach, pepitas, and dressing separately, and wait to cut the avocado until serving.

I don’t recommend freezing the fully assembled bowls. Cooked quinoa freezes well on its own, but the spinach and avocado won’t hold their texture, and the roasted vegetables will be softer once thawed.

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