Mini Mushroom Beef Sliders - Kosher Everyday

Ingredients

• 20 large white mushrooms
• 1 tablespoon Worcestershire sauce
• Kosher salt
• Fresh black pepper
• 1 pound chuck ground beef
• 1 teaspoon dried rosemary
• 1 teaspoon dried thyme
• 1 teaspoon basil, minced
• 4 cloves garlic, minced
• 2 teaspoons kosher salt
• 1/4 teaspoon fresh black pepper
• 1 egg beaten
• 1/2 cup bread crumbs
• 16 mushroom stems minced
• Barbecue sauce
• 10 fresh basil leaves
• 2 plum tomatoes, thinly sliced (10 slices total)
• Fresh rosemary sprigs, to garnish