Preheat oven to 425 degrees.

Add 2 cups of mozzarella and cream cheese to a microwave safe bowl and microwave for 1 minute. Stir to combine and return to microwave until cheese has melted, about 30 more seconds.

Stir in the almond flour and egg to combine.

Place the dough on a large sheet of parchment paper. Top with a second sheet of parchment.

Roll the dough out into a 12 inch diameter circle.

Remove the top piece of parchment and transfer the bottom sheet with the dough on it to a pizza pan.

Bake for 10 minutes or until crust is lightly golden.

For an extra sturdy crust that holds up well, carefully flip the crust over and bake for 3 more minutes.

While pizza crust is baking, brown the ground beef, crumbling it as it cooks. Drain the grease and season with the Worcestershire sauce, onion powder, garlic powder, and salt. Stir well to combine.

Spread the Thousand Island dressing over the baked pizza crust and top with the cheddar and mozzarella. 

Spoon the cooked beef over the cheese. Drizzle with ketchup and mustard.

Return pizza to the oven and bake for 10 minutes or until crust is golden and cheese has melted.

Arrange pickle slices over the pizza and slice into 8 pieces. 

Serve hot.