Hamburger Pinwheels | America's Test Kitchen

Ingredients

• 1 teaspoon vegetable oil
• 1 pound 90 percent lean ground beef
• 1/2 teaspoon salt
• 1/2 teaspoon pepper
• 1 onion , chopped fine
• 3 tablespoons ketchup
• 1 tablespoon Worcestershire sauce
• 1 tablespoon spicy brown mustard
• 8 ounces sharp cheddar cheese , shredded (2 cups)
• 2 3/4 cups Bisquick baking mix
• 1/4 teaspoon cayenne pepper
• 2/3 cup whole milk