Lean prairie bison makes a rich, beefy burger with far less fat. Paired with crisp oven-baked sweet potato wedges, it is a cookout dinner that fits a cut.
Preheat the oven to 220°C (425°F) with a rack in the centre and line a baking sheet with parchment.
Cut the sweet potatoes into wedges about 2 cm (3/4 inch) thick. Toss with the oil, smoked paprika and a pinch of salt and spread in a single layer, not touching.
Roast for 25 minutes, flipping the wedges at 12 minutes, until browned at the edges and soft inside.
Meanwhile, mix the bison gently with the Worcestershire sauce, garlic powder, salt and pepper. Shape into four patties about 2 cm (3/4 inch) thick and press a shallow dimple into the centre of each so they stay flat.
Preheat the grill or a grill pan over medium-high heat, about 200 to 230°C (400 to 450°F), and oil the grates.
Grill the patties for about 4 minutes per side without pressing them, until they reach 71°C (160°F) in the centre. Bison is very lean, so it dries out quickly if overcooked.
Rest the burgers for 3 minutes while you toast the muffins or buns on the grill for 1 minute.
Spread the buns with Dijon and build the burgers with lettuce, tomato and red onion. Serve with the wedges.
Tips
Bison cooks faster than beef because it is leaner; pull it as soon as it hits temperature.
Swaps
Gluten-free: lettuce wrap or gluten-free bun; check the Worcestershire.
Easier to find: extra-lean ground beef works the same way.
Storing and reheating
Cooked patties keep 3 days; reheat wedges in the oven or air fryer.