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Cauliflower Quinoa Burgers with Mushrooms and Onions

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Cauliflower Quinoa Burgers with Mushrooms and Onions are hearty, flavorful, and satisfying vegetarian burgers featuring roasted cauliflower, nutty quinoa, and fresh herbs. Sautéed mushrooms and caramelized onions add rich, savory depth, while melted cheese and toasted buns complete this wholesome twist on a classic favorite.

Ingredients

1 small head cauliflower, chopped into small florets

6 tablespoons olive oil, divided

Salt and pepper, to taste

¾ cup dry quinoa

1½ cups vegetable stock

2 teaspoons minced fresh parsley

2 teaspoons fresh thyme leaves

1 cup panko breadcrumbs

1 large egg

3 tablespoons butter

1 medium sweet onion, peeled and sliced into ¾” slices

16–20 medium cremini mushrooms, sliced

3 medium cloves garlic, minced

5 large slices aged Havarti or Swiss cheese

5 burger buns, toasted if desired

Arugula and mayonnaise (optional)

Instructions

  1. Preheat oven to 400°F (200°C). Toss cauliflower florets with 3 tablespoons olive oil, salt, and pepper. Roast for 20–25 minutes, until tender and lightly golden.
  2. Cook quinoa in vegetable stock according to package instructions. Once cooked, fluff with a fork and allow to cool slightly.
  3. In a large bowl, combine roasted cauliflower, cooked quinoa, parsley, thyme, panko breadcrumbs, egg, and a pinch of salt and pepper. Mix until well combined and shape into 5 patties.
  4. Heat remaining 3 tablespoons olive oil in a large skillet over medium heat. Cook patties for 3–4 minutes per side until golden brown. Remove and set aside.
  5. In the same skillet, melt butter. Add onion slices and sauté for 5–7 minutes until soft and caramelized. Add mushrooms and garlic and cook for another 3–4 minutes until mushrooms are tender.
  6. Top each burger patty with a slice of cheese and allow to melt slightly.
  7. Assemble burgers on buns with arugula and mayonnaise, then layer with sautéed mushrooms and onions. Serve immediately.

Notes

Use gluten-free breadcrumbs to make the burgers gluten-free.

Swap Havarti or Swiss with cheddar, mozzarella, or vegan cheese for a dairy-free option.

Add roasted red peppers or avocado slices for extra flavor.

Mix in finely chopped spinach or kale into the burger mixture for extra greens.

Serve with a side of sweet potato fries or a crisp salad for a complete meal.

Nutrition

Find it online: https://familydinnercooking.com/cauliflower-quinoa-burgers-with-mushrooms-and-onions/