Ingredients
- 2 large egg whites
- 1 tablespoon olive oil
- 1/3 cup Italian-style fine dried bread crumbs
- 2 tablespoons chili powder
- 4 portabella mushroom caps (5 in. wide; 1 to 1 1/4 lb. total)
- 4 round sandwich buns (4 in. wide; 3/4 lb. total)
- 1 cup nonfat sour cream
- 2 teaspoons minced canned chipotle chilies or hot sauce
- 1/4 cup thinly sliced red onion
- 1 cup spinach leaves, rinsed and crisped
- Salt
- Pepper
Nutrition Information
- calories 419
- caloriesfromfat 20 %
- protein 16 g
- fat 9.4 g
- satfat 1.6 g
- carbohydrate 68 g
- fiber 5.2 g
- sodium 695 mg
- cholesterol 4.5 mg
How to Make It
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In a bowl, beat egg whites and oil to blend. In another bowl, mix crumbs and chili powder.
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Rinse mushroom caps; drain. Coat each cap with egg mixture, drain briefly, then coat with crumbs, shaking off excess. Set caps, gill sides down, slightly apart on a 12- by 15-inch baking sheet. Lay bun halves, cut sides up, side by side on another 12- by 15-inch baking sheet.
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Bake mushroom caps in a 450° oven until browned and flexible when pressed, about 20 minutes. About 3 minutes before mushrooms are done, add buns to oven; bake until lightly toasted.
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In a small bowl, mix sour cream and chipotle chilies. Spread mixture on cut sides of buns. Layer equal amounts of onion and spinach on each bun bottom, top with a mushroom cap, add salt and pepper to taste, and cover with bun top.
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