Open Steak Sandwich | Sandwich Recipes | Warburtons

Ingredients

• Heat 2 tsp olive oil in a frying pan, add red onion and cook for 2-3 minutes until soft
• Add a pinch of sugar and 2 tsp balsamic vinegar. Cook for a few seconds more and remove from the heat
• In the meanwhile heat a chargrill pan
• Brush a little oil on both sides of the steak. Char grill the steak until cooked to your liking, approximately 1-2 minutes on each side
• While the steak is cooking, place the tomatoes in the same pan
• Toast 1 slice of bread, spread with wholegrain mustard and top with half red onions prepared earlier
• Layer on the steak and place the remaining red onions on top of the steak
• Finish with the char grilled tomatoes for the perfect lunchtime sandwich recipe