Veal hamburger with old cheddar, sautéed mushrooms & ranch sauce

Ingredients

• Dash of olive oil
• 8 oz white mushrooms, sliced
• Salt
• pepper
• 2 lb ground veal
• 1 egg
• 1 clove garlic, finely chopped
• 1 tablespoon Worcestershire sauce
• 2 tablespoons fresh basil, finely chopped
• 1 teaspoon whole-grain mustard
• 1/2 cup old cheddar cheese, cut into 1/3-inch cubes
• 6 hamburger buns, toasted
• 6 slices bacon, cooked and crispy
• 1/4 cup mayonnaise
• 1/4 cup sour cream
• 2 tablespoons buttermilk
• 1/4 teaspoon garlic powder
• 1/2 teaspoon mild paprika