Add the crabmeat, garlic, jalapenos,spinach, swiss, monterey jack, cheddar, worcestershire, hot sauce, salt, Parmigiano-Reggiano cheese and mayonnaise in a small crock pot . Toss gently to mix.Try not to break up crabmeat. Turn on low heat and allow to cook till heated . Once dip is hot turn off . Don’t allow mixture to over cook.Serve with tortilla chips .