Food safety reminder: Follow safe food-handling practices and use a food thermometer to verify safe internal cooking temperatures.
U.S. measurements first, metric equivalents in parentheses. Conversions are approximate; oz means weight ounces, not fluid ounces.
1 lb (450 g) ground beef (80 / 20) 4 oz (115 g) Swiss cheese, cut into 4 pieces 8 oz (225 g) cremini or button mushrooms, finely chopped 1 small shallot, minced 1 tbsp (15 ml) butter 1 tsp (5 ml) fresh thyme (or 1 / 2 tsp (2.5 ml) dried) Salt and pepper to taste 4 buns
1 lb (450 g) ground beef (80 / 20) 4 oz (115 g) Swiss cheese, cut into 4 pieces 8 oz (225 g) cremini or button mushrooms, finely chopped 1 small shallot, minced 1 tbsp (15 ml) butter 1 tsp fresh thyme (or 1 / 2 tsp dried) Salt and pepper to taste 4 buns
U.S. measurements first, metric equivalents in parentheses. Conversions are approximate.
1. Sauté shallot and mushrooms in butter with thyme over medium heat until liquid evaporates and mushrooms are browned; season and cool. 2. Form beef into 8 patties, season with salt and pepper. 3. Place ~1 tbsp (15 ml) mushroom mixture and a piece of Swiss on 4 patties; top with remaining patties and press edges to seal fully. 4. Chill 15 minutes. 5. Grill or pan-sear over medium-high heat 3–4 minutes per side until internal temp is 160°F (71°C). 6. Rest 3 minutes, toast buns if desired, assemble and spoon extra sautéed mushrooms on top. ---
1. Sauté shallot and mushrooms in butter with thyme over medium heat until liquid evaporates and mushrooms are browned; season and cool. 2. Form beef into 8 patties, season with salt and pepper. 3. Place ~1 tbsp mushroom mixture and a piece of Swiss on 4 patties; top with remaining patties and press edges to seal fully. 4. Chill 15 minutes. 5. Grill or pan-sear over medium-high heat 3–4 minutes per side until internal temp is 160°F (71°C). 6. Rest 3 minutes, toast buns if desired, assemble and spoon extra sautéed mushrooms on top. ---
Per serving | Servings: 4
Generated: 2026-11-05T19:36:44+00:00
*Values are estimates based on USDA data and mathematical calculations. Actual values may vary. Where data are unavailable, those contributions are excluded. Calories, Carbohydrates, Protein, Fat, Saturated fat, Trans fat, Cholesterol, Fiber, Sodium, Potassium, Calcium, Iron, Vitamin A, Vitamin C and Vitamin D are known subtotals. Missing contributions are unknown, not zero.