Preheat oven according to biscuit package.

Brown ground beef or turkey and onions over medium heat, until meat is cooked. Drain. Season with pepper and garlic salt.

Return to low heat and stir in processed cheese cubes until cheese is melted.

Meanwhile, spray a muffin pan with cooking spray, and press one biscuit into each muffin cup to form a "pie crust" of sorts. (i.e. up the sides and across the bottom).

Bake biscuits for specified time on package. Remove from oven.

Using a spoon, press the biscuits into the bottom and up the sides to create a "well" for the meat mixture.

Spoon meat mixture evenly into all muffin cups.

Top each with approximately a teaspoon of diced tomatoes.

Sprinkle shredded cheese on top.

Return to oven for approximately 5 minutes to allow cheese to melt.