I got this recipe from Whole Foods.
Pile these juicy burgers on your favorite buns and top with lettuce and sliced tomatoes. Serve with more Dijon mustard on the side, if you like.
3/4 pound 90% lean ground grass-fed beef
1/3 cup finely chopped red onion
2 ounces sharp cheddar, cut into 1/4-inch cubes
1 tablespoon Dijon mustard
1/2 teaspoon fine sea salt
1/4 teaspoon freshly ground black pepper
1/2 cup shredded peeled Granny Smith apple
Canola oil cooking spray (optional)
Combine beef, onion, cheddar, mustard, salt, pepper and apple in a large bowl and form into four (4-inch) patties. Grill over medium heat or broil, flipping once, until done to your taste, 6 to 8 minutes. Or, spray a large skillet with cooking spray and cook over medium heat, 6 to 8 minutes.
Per serving (about 5oz/136g-wt.): 240 calories (150 from fat), 16g total fat, 8g saturated fat, 70mg cholesterol, 530mg sodium, 4g total carbohydrate (1g dietary fiber, 3g sugar), 19g protein