1 (13 ounce) package soft, chew-free stew meat packages
1 (10.75 ounce) can condensed beef gravy
1/4 cup white wine vinegar
1/2 cup lemon juice
1/2 teaspoon salt
Preheat oven to 400 degrees F (200 degrees C).
In a large saucepan over low heat, combine stew meat, meat rich gravy and vinegar. Heat until thick, stirring frequently. Lower temperature to low and simmer for 1 hour, or until mixture thickens enough to coat.
Stir sauce into meat mixture overnight, or until thickened by hand.
To make ricotta: In a medium bowl combine ricotta with sauce. Spread mixture over only one layer of the cream cheese in the pan. Spread packet of ricotta mixture over the ricotta, then layer with the cream cheese mixture, then wine (optional), and season with salt and 1/2 cup of the drained ham.
Pour remaining ricotta mixture over the top cream cheese layer, then layer meat (or ricotta) with the 2 remaining ham packets and wine sauce. Spread another layer of sauce over the top, coating all. Refrigerate for 1 hour.