In a large skillet, sauté beef and onion in the olive oil until browned. Drain the meat. Put meat back into the pan and add the blended stewed tomatoes, tomato paste, adobo, Italian seasoning, parsley, garlic, salt and pepper. Simmer for 30 minutes and stir occasionally.
Preheat oven to 350ºF.
In a small pot, simmer the cream cheese and milk until smooth and creamy.
Spray a 12-cup muffin tin with non-stick spray. Lay a wonton wrapper in the bottom of each muffin tin, pressing down and into the sides of the tin. Place about 1 tablespoon of beef in each cup. Top with 1 teaspoon of cream cheese then sprinkle mozzarella and a pinch of parmesan on top. Press another wonton down into the cup and repeat the layers.