Roasted Cauliflower Sweet Potato Burgers
Crispy-edged veggie patties made from roasted cauliflower and sweet potato, bound with almond flour and egg. Warm spices from cumin and chili powder give depth, while fresh cilantro and lime zest brighten the flavor. Serve in toasted buns with creamy avocado mash and sriracha mayo for a satisfying, dairy-free burger that works for vegetarians and anyone seeking a vegetable-forward main. This version roasts the vegetables first to build caramelized sweetness and structure before pan-frying, ensuring burgers hold together while staying tender inside.
Ingredients
- 1 cauliflower, florets
- 1 ½ pound sweet potato, peeled
- 1 teaspoon sea salt
- 2 tablespoon extra-virgin olive oil
- 1 teaspoon ground cumin
- ⅓ cup almond flour
- 1 large egg2 tablespoon ground flaxseed mixed with 6 tablespoon water1 eggveganeggs-free
needs 15 min rest
Full guide → - 1 teaspoon chili powder
- 1 tablespoon fresh cilantro, chopped
- 1 lime, zest and juice
- 2 avocado
- ½ cup sriracha mayonnaiseplain mayo mixed with sriracha1:1spice control
easily customized
- 6 hamburger bun
- alfalfa sprouts(optional)
Instructions
- 1
Preheat oven to 425°F (425°F).
- 2
Toss cauliflower with half the olive oil, half the cumin, and half the salt on one parchment-lined sheet. On a second sheet, toss sweet potato with remaining oil, cumin, and salt.
- 3
Roast both pans for about 30 minutes, switching positions halfway, until vegetables are lightly browned and caramelized.
- 4
Transfer half the sweet potato and all the cauliflower to a food processor and pulse until coarse paste forms with small chunks remaining.
- 5
Fold the processor mixture into a large bowl with remaining sweet potato, almond flour, egg, chili powder, cilantro, and lime zest until well combined.
- 6
Form mixture into 5 or 6 thick 3-inch patties on a plate.
- 7
Refrigerate patties uncovered for 20 minutes until cool and firm.
- 8
Mash avocados with lime juice and salt in a small bowl until coarsely combined.
- 9
Heat a large non-stick skillet over medium-high heat with a thin layer of oil. Fry patties 3 at a time about 3 minutes per side, gently shaping with a spatula as needed.
- 10
Transfer burgers and buns cut-side up to a parchment-lined sheet and bake for 10 minutes.
- 11
Assemble burgers on toasted buns with avocado mash, sriracha mayo, and sprouts. Serve with remaining sauce.
Tips
Refrigerating patties firms the mixture and prevents falling apart during pan-frying. If still very sticky after chilling, chill 10 minutes longer.
Use a silicone spatula to gently reshape patties in the pan rather than pressing, which releases moisture and makes them dense.
Toast buns in the oven to add crunch and prevent sogginess from wet toppings.
Good to Know
Refrigerate cooked burgers in an airtight container up to 3 days. Freeze uncooked patties on a tray, then transfer to freezer bags up to 1 month. Thaw in refrigerator before cooking.
Form and refrigerate patties up to 8 hours ahead. Prepare avocado mash up to 2 hours ahead; press plastic wrap directly on surface to prevent browning.
Serve immediately after assembly while buns are warm. Offer sriracha mayo and avocado mash on the side so guests can customize.
Common Mistakes
Don't skip roasting vegetables first; it builds flavor and structure necessary for burger integrity.
Don't press burgers flat while cooking to avoid compacting and moisture loss; use gentle spatula nudges.
Don't skip the 20-minute chill; patties need to firm up or they'll fall apart in the pan.
Substitutions
Vegan Options
needs 15 min rest
Full guide →Nut-Free Alternatives
General Alternatives
easily customized
FAQ
Can I make these ahead and freeze?
Yes. Form uncooked patties, freeze on a tray until solid, then transfer to freezer bags up to 1 month. Thaw in the refrigerator overnight, then cook as directed. Cooked burgers also keep refrigerated 3 days.
What if my patties fall apart while cooking?
The mixture may be too wet or not chilled long enough. Ensure you refrigerate 20 minutes minimum. If still sticky, chill longer. Use a non-stick skillet and gentle spatula pressure to reshape as needed.
How long do leftover burgers keep?
Cooked burgers last 3 days refrigerated in an airtight container. Uncooked frozen patties last up to 1 month. The avocado mash is best used immediately but keeps 2 hours covered.