Preheat oven to 350 F. In a large baking dish drizzle olive oil on the bottom and add potatoes and onions (or shallots) and thyme sprigs. Lightly season with salt and pepper.

Saute veal cubes in batches in a large saute pan with olive oil. Season with salt and pepper as the veal cubes cook. Mix together with the potatoes and onions.

Add chopped tomatoes, sauce and wine to the pan and bring to a simmer. Pour the tomato wine mixture over the veal and potatoes. Mix well, cover with tin foil, and roast on middle rack for 1 hour.

After 1 hour carefully remove the baking dish and stir the ingredients. Return the uncovered baking dish to the oven (middle rack) continue to cook uncovered until veal is tender (can be cut with a fork).