This is way more then a hamburger! The taste is out

of this world, it is truly the top Gourmet Bison Burger.

It is not only a delicious dinner but a quick gourmet meal.

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Ingredients

* 2 tablespoons olive oil, divided
* 3 cups sliced onions (about 2)
* 2 pounds ground bison (buffalo)
* 4 tablespoons chopped shallots
* 1/2 teaspoon coarse kosher salt
* 1/2 teaspoon dried thyme
* 4 organic hamburger buns
* 6 ounces sliced white cheddar cheese
* Dijon mustard
* 1 bag of gourmet lettuce leaves

Directions
*
Heat 1 tablespoon oil in heavy medium skillet over medium-high heat. Add onions, sprinkle with salt, and sauté until tender and golden brown, stirring often, about 10 minutes. Reduce heat to medium and continue to sauté until very tender and well browned, about 15 minutes longer. DO AHEAD Can be made 3 days ahead. Cool, cover, and chill.
*
Preheat broiler. Gently mix the meat and next 3 ingredients in a large bowl. Shape the meat into four 1/2-inch-thick patties. Heat remaining 1 tablespoon oil in heavy large skillet over high heat. Sprinkle burgers with salt and pepper; add to skillet. Cook the burgers until well browned, about 2 to 4 minutes per side for medium-rare. Add cheese on top of burgers to melt.
*
Open buns and arrange, cut side up, on a rimmed baking sheet. Put hamburger buns under the broiler until toasted. Spread bottom halves with mustard. Top each with gourmet lettuce leaves, then burger. Spoon onions atop burgers, dividing equally. Cover with bun tops; press lightly.

For a lighter version, you can omit the hamburger bun and mix the gourmet lettuce leaves with some red wine and olive oil and put the hamburger on top the gourmet lettuce leaves and top the hamburger with the grilled onions.