Turkey-Mushroom Burgers with Scallion-Lemon Mayonnaise

1. To prepare burgers: Place bread in a food processor and pulse into fine crumbs. Transfer to a large bowl. Pulse mushrooms in the food processor until finely chopped.

2. Heat 2 teaspoons oil in a large nonstick skillet over medium-high heat. Add onion, garlic and the mushrooms; cook, stirring occasionally, until tender and liquid has evaporated, about 10 minutes. Add to breadcrumbs and let cool completely, 15 to 20 minutes.

3. Meanwhile, prepare mayonnaise: Combine sour cream, mayonnaise, scallions, lemon zest, lemon juice, pinch of salt and pepper in a small bowl; whisk until blended.

4. Preheat grill to medium-high.

5. Add ground turkey, egg, dill, mustard, 1/2 teaspoon salt and 1/4 teaspoon pepper to the mushroom mixture; mix well with a potato masher. With dampened hands, form the mixture into 6 patties, 1/2 inch thick, using about 1/8 cup for each.

6. Oil the grill rack (see Tips). Brush the patties with the remaining 1 teaspoon oil. Grill until no longer pink in the center, about 5 minutes per side. (An instant-read thermometer inserted in the center should register 165 degrees F.) Meanwhile, split buns and toast on the grill for 30 to 60 seconds. Serve burgers on buns with the mayonnaise, lettuce and tomato.

Tips

Make Ahead Tip: Prepare patties through Step 5. Wrap individually and refrigerate for up to 8 hours or freeze for up to 3 months. Thaw in the refrigerator before cooking. Cover and refrigerate mayonnaise (Step 3) for up to 2 days.

Check labels carefully and select ground turkey breast. Regular ground turkey, which is a mixture of dark and white meat, has a higher fat content (similar to that of lean ground beef).

Oiling a grill rack before you grill foods helps ensure that the food won't stick. Oil a folded paper towel, hold it with tongs and rub it over the rack. (Do not use cooking spray on a hot grill.) When grilling delicate foods like tofu and fish, it is helpful to coat the food with cooking spray.

Storage smarts: For long-term freezer storage, wrap your food in a layer of plastic wrap followed by a layer of foil. The plastic will help prevent freezer burn while the foil will help keep off-odors from seeping into the food.