- 2 pounds ground buffalo
- 2 teaspoons salt
- ground black pepper to taste
- 1/2 cup crumbled blue cheese
- 8 whole wheat hamburger buns, split and toasted
- 1/2 cup mayonnaise
- 8 leaves Bibb lettuce
- 1/2 red onion, cut in 1/2-inch slices
- 8 slices tomato
- Preheat an outdoor grill for medium-high heat and lightly oil the grate.
- Season the ground buffalo with salt and pepper; form into 8 balls. Press a cavity in each ball with your thumb pressing halfway into each ball; place a tablespoon of blue cheese into the hole and seal the meat around the cheese. Press each ball into a patty shape.
- Cook the burgers on the preheated grill until cooked to your desired degree of doneness, 4 to 6 minutes per side for well done. An instant-read thermometer inserted into the center should read 160 degrees F (70 degrees C). Spread the toasted buns with mayonnaise. Place a burger patty onto each bun bottom, then place a lettuce leaf, onion rings, and tomato slice onto each sandwich. Top with the remaining buns to serve.