Melt-in-the-Middle Bacon Cheeseburgers - Pinch Of Nom

Ingredients

• ½ red onion, (peeled)
• 400 g 5% fat minced beef
• 1 pinch salt and pepper
• 1 tsp garlic granules
• 1 pinch mustard powder
• 1 tsp Worcestershire sauce or Henderson's relish
• ½ beef stock cube
• 1 tsp soy sauce
• 1 medium egg
• 4 Babybel Light
• low calorie cooking spray
• 4 bacon medallions
• 4 wholemeal rolls, (approx. 60g, sliced in half)