Casserole Steak Keju Philly

Bahan-bahan (6 porsi)

• 1 tablespoon olive oil
• 2 lbs sirloin steak, ( thinly sliced)
• garam dan merica (secukupnya)
• 1 tablespoon saus Worcestershire
• 1 tablespoon mentega tawar
• 1 small white onion, ( sliced)
• 1 red bell pepper, (sliced)
• 1 g reen bell pepper, (sliced)
• 4 ounces mushrooms, (sliced)
• 2 cloves garlic, (minced)
• 4 ounces krim keju
• 1/2 cup krim kental
• 1 cup pepperjack cheese, (shredded)
• 6 slices keju provolon