Fresh Vegetable Panini - Inspired Cooks

Ingredients

• 1/2 teaspoon extra virgin olive oil
• 2 medium portobello mushroom caps, cut into 1/4-inch-thick slices
• 8 slices 100% whole grain whole wheat bread
• Nonstick cooking spray
• 4 slices reduced fat provolone cheese
• 1 small red onion, thinly sliced (1 cup)
• 1 cup baby spinach, stems removed
• 1 jar (12 ounces) roasted red peppers, drained and sliced
• 1/4 teaspoon kosher salt
• 1/4 teaspoon freshly ground black pepper