Mushroom and White Beer Cheese Burger

Ingredients

• 1 package of KING'S HAWAIIAN Sweet Pretzel Hamburger Buns
• 1 lb ground beef
• 1 red onion, sliced
• 8 oz mushrooms, sliced
• 4 slices Swiss cheese
• 8 tsp horseradish cream
• 1 bunch arugula
• 4 tsp salted butter
• 4 tsp of garlic
• 1 cup of blue cheese
• 8 tbsp mayonnaise
• 4 tbsp lemon
• 1/2 cup Fat Tire Beer
• Salt and Pepper to taste