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1
FOR THE BURGER: Pulse mushrooms in a food processor until finely chopped, and transfer to a bowl.
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2
Shred zucchni, place on paper towels, and squeeze to remove excess moisture.
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3
Add to mushrooms.
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4
Heat 2 tablespoons oil in a large pan over medium heat.
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5
Add shallot and red pepper flakes, and cook until softened, about 2 minutes.
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6
Add mushrooms and zucchini, and cook until tender, about 2 minutes.
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7
Remove from heat and add Parmesan, quinoa, and salt.
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8
Season with salt and pepper.
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9
Let cool completely, then stir in egg and breadcrumbs.
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10
Cover and refrigerate until cold and firm, about 1 hour.
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11
Heat remaining 2 tablespoons oil in a large nonstick skillet over medium heat.
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12
Shape mixture into six 1/2-inch patties, pressing firmly.
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13
Cook in batches until golden brown and cooked through, about 3 minutes per side.
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14
Wipe pan clean, and return to medium heat.
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15
Brush cut side of buns with oil, and heat buns, cut sides down until toasted, about 1 minute.
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16
Spread yogurt-garlic sauce on cut sides of bun halves.
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17
Divide burger, sprouts, and cucumbers among bottom halves.
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18
Sandwich with tops.
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19
YOGURT-GARLIC SAUCE: combine yogurt, parsley garlic, and salt in a medium bowl.
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20
Season with pepper.
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21
Cover and refrigerate for up to 1 day.