Turkey & Mushroom Burgers

• 2 tablespoons extra-virgin olive oil
• 1 yellow onion, finely chopped
• 10 ounces white button mushrooms, finely chopped
• 1/2 pound ground turkey
• 1 large egg
• 1/2 teaspoon kosher salt
• 2 tablespoons canola oil

1. Add the olive oil to a large skillet and set over medium-high heat. Add the onion and saute, stirring occasionally, until starting to soften and turn translucent-about 5 minutes. Add the mushrooms, stir, and continue to saute-stirring and lowering the heat as needed-for about 20 minutes. Cool completely before forming the burgers.
2. Form the burgers. Mix the cooled mushroom-onion mixture, turkey, egg, and salt in a bowl.
3. Set a large cast-iron skillet over high heat. Add the canola oil. When the skillet is very hot, add the patties. Sprinkle with salt. Sear for about 3 minutes, until crusty, then flip. Top with cheese, if you're using, and sear for another 3 or so minutes until cooked through.
4. Sandwich with your chosen bun and toppings. Slice in half and eat.

extravirgin olive oil, yellow onion, white button mushrooms, ground turkey, egg, kosher salt, canola oil

Taken from food52.com/recipes/77220-turkey-mushroom-burgers (may not work)