Kidney Bean and Sweet Potato Burgers

Name: Kidney Bean and Sweet Potato Burgers
Prep time: 20 min
Cook time: 25 min
Total time: 45 min
Yield: 4 servings
Cuisine: American
Ingredients: 15 oz (425 g) canned kidney beans, drained and rinsed, drained, rinsed, and patted dry; 1½ cups (340 g) sweet potato, roasted or boiled, cooled, peeled, and mashed; 1 medium (150 g) red or orange bell pepper, finely diced; ½ medium (80 g) yellow onion, finely diced; ⅓ cup (42 g) all-purpose flour; ⅓ cup (28 g) panko breadcrumbs; 1 tsp (2 g) ground cumin; ½ tsp (1 g) smoked paprika; 2 cloves (6 g) garlic cloves, minced; ¾ tsp (4½ g) kosher salt; ¼ tsp (½ g) freshly ground black pepper; 3 tbsp (45 ml) extra-virgin olive oil, divided for cooking; 1 tbsp (15 ml) fresh lime juice (optional)

From the MyKitchenBank Kitchen

Hearty, protein-packed veggie burgers with creamy mashed kidney beans, roasted sweet potato, and sautéed bell pepper and onion. Pan-fried until golden and crispy on the outside, tender within. These hold together beautifully and taste even better the next day.

Prep: 20 min
Cook: 25 min
Wait: 30 min
Total: 1 hr 15 min
Makes: 4 burgers

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Steps

Before you start

Preheat oven to 400°F (200°C) if roasting sweet potato fresh; or use leftover roasted sweet potato
Drain and rinse canned kidney beans thoroughly
Have all ingredients prepped and measured before you begin mixing

1
Sauté vegetables
- Heat 1 tablespoon (15 ml) of olive oil in a 10-inch skillet over medium-high heat.
- Add the diced bell pepper and onion; sauté for 5–6 minutes, stirring occasionally, until softened and the onion is lightly golden.
- Stir in the minced garlic and cook for 1 minute more until fragrant.
- Transfer to a large mixing bowl and let cool for 2 minutes.
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Ready when: Onion is translucent and pepper is tender but still has slight firmness
Tip: Do not overcook—you want vegetables soft but not mushy, so they maintain texture in the final burger.
2
Mash beans with vegetables
- Add the drained kidney beans and mashed sweet potato to the bowl with the cooled vegetables.
- Using a fork or potato masher, gently mash the mixture until about 60% of the beans are broken down; leave some beans whole for texture.
- The mixture should hold together but still be chunky, not a smooth paste.
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Ready when: Mixture is cohesive but still has visible bean and vegetable chunks
Tip: Undermash rather than overmash—too smooth a mixture will make dense, heavy burgers. You want a rustic texture.
3
Add flour and seasonings
- Sprinkle the flour, breadcrumbs, cumin, smoked paprika, salt, and black pepper over the bean mixture.
- Add the lime juice if using.
- Gently fold everything together with a fork until the flour and breadcrumbs are fully incorporated and the mixture is tacky but not wet.
- It should hold together when squeezed.
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Ready when: All dry ingredients are evenly distributed and mixture holds together when pressed
Tip: If the mixture feels too wet (sticks to your fingers), add 1–2 tablespoons more breadcrumbs. If too dry, add ½ tablespoon more olive oil.
4
Form and chill patties
- Divide the mixture into 4 equal portions.
- Using your hands (lightly wet them to prevent sticking), gently shape each portion into a burger patty about ¾ inch (2 cm) thick and 3.5 inches (9 cm) in diameter.
- Place on a plate lined with parchment paper or plastic wrap.
- Refrigerate for at least 30 minutes, or up to 24 hours, so the patties firm up and hold together during cooking.
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Ready when: Patties are cold and firm to the touch
Tip: Don't skip this step—cold, firm patties are essential for a successful burger that won't crumble in the pan.
5
Prepare to pan-fry
- Remove the patties from the refrigerator and let them sit at room temperature for 5 minutes.
- Wipe out the skillet you used for the vegetables (or use a clean one) and add the remaining 2 tablespoons (30 ml) of olive oil.
- Heat the oil over medium-high heat until it shimmers and is just beginning to smoke slightly—about 1–2 minutes.
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Ready when: Oil shimmers and moves freely across the pan surface
Tip: The oil must be hot before adding the patties, or they will absorb oil and become greasy instead of crispy.
6
Pan-fry first side
- Carefully place the 4 patties into the hot oil, spacing them evenly—they should sizzle immediately upon contact.
- Cook without moving them for 4–5 minutes, until the bottom is deep golden brown and crispy.
- Do not flip early; this crust holds the burger together.
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Ready when: Bottom is deep golden brown with visible crispy edges; a gentle shake doesn't make the patty slide
Tip: Resist the urge to flip. The first side needs to set and crisp fully, or the burger will break apart when you turn it.
7
Pan-fry second side
- Using a sturdy spatula or fish turner, carefully slide it under each patty to release it from the pan, then flip.
- Cook the second side for 3–4 minutes, again without moving, until that side also develops a golden-brown crust.
- The burger will be hot throughout and the patty will have set firm.
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Ready when: Second side is golden brown and crispy; patty is firm when gently pressed and doesn't jiggle
Tip: If a patty is not brown enough after 4 minutes, extend to 5 minutes—the beans won't dry out at this heat level.
8
Rest and serve
- Transfer the burgers to a warm plate and let them rest for 2–3 minutes.
- Serve immediately on toasted buns with your favorite toppings: lettuce, tomato, avocado, pickles, vegan mayo, mustard, or a ginger-lime aioli.
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Ready when: Burgers are cool enough to handle and eat safely
Tip: A resting period prevents the burger from breaking apart as you bite into it. It also allows carryover heat to finish cooking the interior evenly.

Good to know

Tips

These burgers are fully plant-based and naturally vegan. They're excellent sources of fiber and plant-based protein from the kidney beans.
For extra flavor, toast the cumin and paprika in a dry skillet for 30 seconds before adding to the mixture—this deepens their warmth.
If you don't have fresh lime juice, skip it; the burgers are delicious without it. Alternatively, add 1 tablespoon of apple cider vinegar for brightness.
Serve with a ginger-lime aioli: whisk together ½ cup vegan mayo, 1 tablespoon lime juice, 1 teaspoon grated fresh ginger, and 1 minced garlic clove for a restaurant-quality burger.

Make ahead

Patties can be formed, wrapped individually in plastic wrap, and frozen for up to 3 months. Thaw in the refrigerator for 4–6 hours, then cook as directed. Cooked patties can be refrigerated for up to 3 days and reheated in a skillet over medium heat for 2–3 minutes per side until warmed through.

Storage & reheating

Room temperature: up to 2 hours (cover with foil to prevent drying). Refrigerator: up to 3 days in an airtight container. Freezer: raw patties up to 3 months (wrap individually); cooked burgers up to 2 months. Reheat cooked burgers in a skillet over medium heat for 2 minutes per side, or wrap in foil and warm in a 350°F (175°C) oven for 5 minutes.

Substitutions

canned kidney beans, drained and rinsed → Black beans or pinto beans. Use the same weight; they have similar texture and will work beautifully. Black beans are slightly earthier; pinto beans are slightly creamier.
sweet potato, roasted or boiled → Roasted butternut squash or carrot. Use the same weight. Both provide sweetness and binding. Squash will be slightly more delicate; carrot will be slightly firmer.
panko breadcrumbs → Crushed walnuts or pecans (finely ground). Use the same weight. This adds nuttiness and crunch. May need ½ tablespoon extra olive oil in the mixture if it feels dry.
ground cumin → Ground coriander or 1 teaspoon of Cajun seasoning. Coriander is citrusy and warm; Cajun seasoning brings a spicy kick. Both work well with sweet potato.