In a large skillet on the stove, cook 1 lb ground sausage for a few minutes until cooked through and crumbly.
In the pan, add the 1 (8 oz) block cream cheese, 4 oz velveeta, and 2 tsp complete seasoning, and stir until the cheese is melty.
Add 1 (15 oz) can fire roasted diced tomatoes and mix again until well blended.
Remove the pan from the heat and stir in 1 cup of mozzarella cheese.
Spray an oven-safe dish with nonstick spray, then transfer the dip into the dish. Top with the remaining ¾ mozzarella cheese and place under the broiler for 3-4 minutes, until the top is melty and crispy.
Serve with crackers, crostini, etc. Enjoy!