Before starting, preheat the oven to 450°F. Wash and dry all produce. Heat Guide for Steps 2 and 4 (dbl for 4 ppl): 1/4 tsp mild, 1/2 tsp medium, 1 tsp spicy and 1 1/2 tsp for extra-spicy! Cut tomato into 1/2-inch pieces. Cut potatoes into 1/4-inch rounds.

Add potatoes and 1 tbsp oil to an unlined baking sheet. Season with salt and half the Montreal Steak Spice, then toss to coat. (NOTE: Reference heat guide.) Roast in the bottom of the oven, flipping halfway through, until tender and golden-brown, 16-18 min. (NOTE: For 4 ppl, use 2 baking sheets, with 1 tbsp oil per sheet. Roast in the middle and bottom of the oven, rotating sheets halfway through.)

While potatoes roast, add horseradish, mayo, mustard and 1 tsp honey (dbl for 4 ppl) to a small bowl. Season with salt and pepper, to taste, then stir to combine.

Heat a large non-stick pan over medium-high heat. While the pan heats, pat barramundi dry with paper towels. Sprinkle with salt and remaining Montreal Steak Spice. (NOTE: Reference heat guide.) When hot, add 1 tbsp oil (dbl for 4 ppl), then barramundi, skin-side down. Cook until skin is crispy, 4-5 min. Flip and reduce heat to medium. Cook until barramundi is opaque and cooked through, 2-3 min.**

While barramundi cooks, add vinegar, remaining honey and 1 1/2 tbsp oil (dbl for 4 ppl) to a large bowl. Season with salt and pepper, to taste, then whisk to combine. Add spring mix and tomatoes, then toss to combine.

Divide salad, barramundi and potatoes between plates. Sprinkle seed blend over salad. Serve horseradish mustard-mayo alongside for dipping.