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Holiday Recipes
Balsamic Roasted Portobello Sandwich

Balsamic Roasted Portobello Sandwich



  • 4 Aunt Millie's Deli Onion Buns
  • 4 large Portobello mushrooms
  • 1/2 c. balsamic salad dressing
  • 2 red peppers, sliced
  • 1 small red onion, sliced
  • 1/2 c. low-fat mayonnaise
  • 1/4 c. Parmesan cheese
  • Juice of half a lemon
  • Salt
  • Pepper

Yield: 4 Sandwiches


  1. Preheat oven to 400 degrees.
  2. Place mushrooms, peppers, and onions onto a large baking sheet. Drizzle the vegetables with the balsamic dressing and toss. Bake for 15-20 minutes until nicely browned.
  3. Meanwhile, combine the mayonnaise, cheese, and lemon juice together in a small bowl. Salt and pepper to taste.
  4. Spread 4 hamburger buns with desired amount of Parmesan mayonnaise, and top each with grilled vegetables.
  5. Serve immediately.

Nutrition Information:

Serving Size 1 Sandwich 
Number of Servings 4
Calories 440
Calories from Fat 153
Total Fat 17g 26% DV
Saturated Fat 12g 60% DV
Trans Fat 0g
Polyunsaturated Fat 3g
Monounsaturated Fat 1g
Cholesterol 12mg 4% DV
Sodium 1337mg 56% DV
Potassium 118mg 3% DV
Total Carbohydrate 52g 17% DV
Dietary Fiber 5g 20% DV
Sugar 13g
Protein 18g

*Percent Daily Values (%DV) are based on a 2,000 calorie diet.

Aunt Millie's