Ground Philly Cheesesteak Grilled Cheese Yo

Ingredients

• 225g (½ lb) ground beef (80/20 blend preferred)
• 1 tablespoon olive oil (15 ml)
• ½ medium yellow onion, thinly sliced (about 75g)
• ½ green bell pepper, thinly sliced (about 75g)
• ½ red bell pepper, thinly sliced (about 75g)
• 1 teaspoon Worcestershire sauce (5 ml)
• ½ teaspoon garlic powder (2.5 ml)
• ¼ teaspoon salt (1.25 ml)
• ¼ teaspoon black pepper (1.25 ml)
• 4 slices of your favorite bread (brioche, sourdough, or Texas toast work great)
• 4 tablespoons unsalted butter, softened (57g)
• 115g (4 oz) provolone cheese, sliced (or cheese whiz for the purists)