Philly Cheesesteak Portobello Mushrooms

• 4 Portobello mushrooms, stems and gills removed
• 1 tsp. olive oil
• 3/4 tsp. salt, divided
• 3/4 tsp. freshly ground black pepper, divided
• 6 oz. thin sliced sirloin steaks, sliced into thin strips
• 3/4 cup diced onion
• 3/4 cup diced green pepper
• 1/4 cup Greek yogurt
• 2 Tbsp. mayonnaise
• 2 oz. cream cheese, softened
• 4 slices provolone cheese

Instructions

1. Preheat oven to 400°.
2. Place mushrooms in a baking dish sprayed with non-stick cooking spray. Drizzle each with olive oil and season with an 1/8 teaspoon of salt and pepper.
3. In large skillet over high heat, add sirloin steak. Season with remaining 1/4 teaspoon salt and pepper and let cook about 1 minute each side, transfer to a large bowl.
4. Reduce heat to medium-low and add onion and green pepper. Cook 5 to 6 minutes, until soft. Transfer to bowl with steak meat. Stir in yogurt, mayonnaise and cream cheese.
5. Spoon about 1/2 cup mixture into each mushroom. Top with a slice of cheese and bake about 20 minutes.