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Portobello Sandwiches with Zesty Red Onions

Layers of mushroom slices, red bell peppers, and cheese, all seasoned with a sweet-and-sour onion mixture, combine to create a unique sandwich.

Recipe information

  • Yield

    serves 4, 1 sandwich per serving

Ingredients

Cooking spray
3 tablespoons low-sodium vegetable broth or water
1 teaspoon toasted sesame oil
1 to 2 cups sliced red onions (1/4 inch thick)
1 large or 2 medium red bell peppers, sliced
2 tablespoons light brown sugar
1 tablespoon vinegar
1 tablespoon lemon juice
1 teaspoon dried basil, crumbled, or 1 tablespoon snipped fresh basil
1/8 to 1/4 teaspoon crushed red pepper flakes
2 fresh portobello mushrooms (4 to 6 ounces each), stems discarded
2 ounces provolone cheese, sliced
1/2 long, wide loaf French or Italian bread (about 8 ounces)

Preparation

  1. Step 1

    Lightly spray a large skillet, roasting pan, and roasting rack with cooking spray.

    Step 2

    Pour the broth and oil into the skillet, swirling to coat the bottom. Cook the onions and bell pepper over medium-high heat for about 2 minutes, stirring occasionally. Reduce the heat to medium and cook until the onions are quite limp and beginning to brown, about 10 minutes, stirring occasionally.

    Step 3

    Meanwhile, preheat the broiler.

    Step 4

    In a small bowl, whisk together the brown sugar, vinegar, lemon juice, basil, and red pepper flakes until the sugar dissolves. Lightly brush both sides of the mushrooms with part of the mixture, reserving the remaining mixture.

    Step 5

    Broil the mushrooms on the roasting rack about 4 inches from the heat for 5 minutes on each side, or until they darken and begin to shrivel.

    Step 6

    When the onions are beginning to brown, stir in the remaining brown sugar mixture. Bring to a boil over medium heat and boil until the onions are coated and no liquid remains.

    Step 7

    Slice the bread in half lengthwise, then into quarters crosswise (8 pieces total). Cut the mushrooms into 3/4-inch slices. Spread the onion mixture over 4 pieces of the bread. Add the mushrooms, then the provolone. Top with the remaining bread and serve, or put the open sandwiches and remaining bread on the roasting rack used for the mushrooms and broil for 1 minute, or until the provolone melts and the bread is toasted.

  2. Cook’s Tip

    Step 8

    If you’re watching your sodium intake, use half as much bread as the recipe calls for and serve this sandwich open-face. You’ll need knives and forks.

  3. nutrition information

    Step 9

    (Per Serving)

    Step 10

    Calories: 287

    Step 11

    Total Fat: 6.0g

    Step 12

    Saturated: 3.0g

    Step 13

    Trans: 0.0g

    Step 14

    Polyunsaturated: 1.0g

    Step 15

    Monounsaturated: 1.5g

    Step 16

    Cholesterol: 10mg

    Step 17

    Sodium: 501mg

    Step 18

    Carbohydrates: 47g

    Step 19

    Fiber: 3g

    Step 20

    Sugars: 12g

    Step 21

    Protein: 12g

    Step 22

    Dietary Exchanges

    Step 23

    2 1/2 Starch

    Step 24

    2 Vegetable

    Step 25

    1/2 Medium-Fat Meat

American Heart Association Quick & Easy Meals
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