Start by finely chopping the baby bella mushrooms. Heat the olive oil in a skillet over medium heat, then add the mushrooms and minced garlic. Sauté for about 5 minutes, or until the mushrooms are tender and most of their moisture has evaporated. Season with a sprinkle of salt and pepper, then set aside to cool slightly.
In a large mixing bowl, combine the Shady Brook Farms ground turkey, garlic powder, onion powder, Sriracha sauce, chopped chives, steak sauce, kosher salt, and ground pepper. Mix gently with your hands or a spatula until just combined—don’t overmix!
In a separate bowl, combine the sautéed mushrooms with the cold cream cheese and grated fontina cheese. Mix until well blended.
Divide the turkey mixture into four equal portions. Flatten each portion into a disc, then spoon about 2 tablespoons of the mushroom cheese filling into the center. Fold the edges of the turkey over the filling and shape into a patty, ensuring the filling is completely enclosed. Repeat with the remaining turkey mixture.
Preheat your grill or skillet over medium-high heat. Lightly oil the grates or surface to prevent sticking.
Place the stuffed turkey burgers on the grill or skillet. Cook for about 5-6 minutes on each side, or until the internal temperature reaches 165°F and the burgers are nicely browned.
Once cooked, remove the burgers from the heat and let them rest for a couple of minutes. Serve on your favorite buns with additional toppings like lettuce, tomato, or avocado, and watch your guests devour these Mushroom Cheese Stuffed Sriracha Chive Turkey Burgers!