Ingredients

• 1 pound lean ground beef
• 1/2 green bell pepper, finely chopped
• 1/2 small red onion, finely chopped
• 1 medium tomato, seeds removed and finely chopped
• 1 egg
• 2 tablespoons milk
• 1 tablespoon olive oil
• 1/2 teaspoon salt
• 1/2 teaspoon pepper
• 1/2 cup plain breadcrumbs (such as Panko)

Serves 4