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Steak & onion sandwich

Steak & onion sandwich


A proper steak and onion sarnie is a thing of beauty. Whip this epic lunch up in 30 minutes.

  • Feeds 2 Feeds 2
  • Ready in 30 minutes

Each serving contains

  • Energy
    3041kj 728kcal
  • Fat
    High 58%
  • Saturates
    High 74%
  • Sugar
    Low 12%
  • Salt
    Med 26%

% of adult’s reference intake | Carbohydrates per serving : 49g

Bring Co-op to your front door

Big Bag Option


  • 2 tbsp Co-op olive oil
  • 2 onions, thinly sliced
  • 1 tbsp Co-op white wine vinegar
  • 1 garlic clove, crushed
  • 60g Co-op Irresistible Gouda, grated
  • 2 tbsp sage leaves, roughly chopped
  • 227g Co-op Irresistible Hereford sirloin steak
  • 1 Co-op demi baguette, halved
  • 2 tbsp reduced fat mayonnaise
  • ½ x 75g pack Co-op watercress


  1. Heat half the olive oil in a nonstick pan and cook the onions over a low heat for 15-20 mins, until very soft
  2. Add the vinegar and garlic, increase the heat slightly and cook for another 5 mins
  3. Stir in the Gouda and sage and set aside
  4. Brush the steak with the remaining oil and cook in a hot griddle pan for 3-4 mins on each side for medium-rare, or until cooked to your liking
  5. Set aside to rest
  6. Slice open the baguettes and dip the cut sides into the steak pan to soak up all the juices. Spread with the mayo and spoon on the onions
  7. Slice the steak thinly, then pile on top of the onions before finishing with the watercress to serve