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Prairie steak sandwich

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  • Prep Time20 min
  • Total Time50 min
  • Makes4 to 6 servings
Prairie steak sandwich

Photo, Andrew Grinton.

Chatelaine Triple Tested

We partnered with President's Choice to create amazing dishes that celebrate flavours we love from across Canada.

Ingredients

  • 1 Yukon gold potato, cut into 1/4-in. rounds

  • 4 slices PC Old Fashioned Style Naturally Smoked Thick Cut Bacon

  • 1 sprig rosemary

  • 2 tbsp olive oil

  • 1 225-g pkg mixed mushrooms, (shiitake and oyster)

  • 2 New York striploin steaks

  • 1/4 tsp salt

  • 1/4 tsp pepper

  • 1 small red onion, cut into rounds

  • 2 demi-baguettes, 11-in.long, halved lengthwise

  • 8 PC Sliced Medium Cheddar Cheese

  • 1/4 cup PC Mayonnaise

  • 3 cups watercress

Instructions

  • PREHEAT barbecue to medium-high.

  • SPRAY a 12-in. square of foil with oil and arrange potatoes  in centre. Top with bacon slices. Fold up the edges, pinching corners to create an open box. Top with rosemary.

  • BRUSH mushrooms and steaks with oil. Sprinkle steaks with salt and pepper.

  • OIL grill and grill steaks, potato packet, onion and mushrooms, lid closed. Flip steaks after 4 min, brush with 1/4 cup of the barbecue sauce and grill until medium-rare to medium, 3 to 5 more min. Transfer to a cutting board and let rest, covered with foil, for 5 min. Cook potato packet, turning occasionally, until potatoes are fork-tender, 4 to 6 min. Cook onion until charred and mushrooms until grill marks form, 8 to 10 min. Transfer to a cutting board as they are done.

  • GRILL buns, cut-side down, beside veggies until toasted, about 2 min. Top each bottom bun with 4 slices of cheese and continue grilling until cheese is melted, 1 to 2 min.

  • SLICE steak and mushrooms. Stir remaining 1/4 cup of barbecue sauce and mayo in a bowl. Lay steak over cheese and drizzle with half of mayo mixture. Top with bacon, potatoes, onions, mushrooms and watercress. Drizzle with remaining sauce and sandwich. Cut each sandwich in half.

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The cover of Chatelaine's Spring 2026 issue.

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A Bright Spot: Our Spring 2026 issue features 12 colourful DIY decor hacks from guest editor Alexandra Gater. Plus, recipes for protein-packed breakfasts, cheese soufflé and a dreamy rhubarb cake.