Place a large skillet over medium-high heat and add the ground beef.

Cook the beef until fully browned, using a spatula to break it into small crumbles.

Drain the excess fat from the skillet, leaving approximately one tablespoon for flavor.

Add the sliced onions and bell peppers to the skillet.

Sauté the vegetables with the beef for 6 to 8 minutes until the onions are translucent and peppers are tender-crisp.

Stir in the minced garlic, salt, black pepper, and Worcestershire sauce, cooking for 1 additional minute.

Distribute the mixture evenly into four heat-safe meal prep containers.

Top each portion immediately with one slice of provolone cheese so it melts from the residual heat.