Prepare the vegetable broth.
Then clean the pumpkin: peel, remove the kernels and the inner fibers, then slice and then cut into cubes.
Cut the onion into thin slices, fry in a pan together with the oil and the roast beef at a medium high temperature.
Drain with red wine and simmer briefly.
Add chopped rosemary, salt, pepper, pumpkin and the stock.
Bake at 180 ° for two hours.
After the cooking pumpkin cubes mix with the ground until you get a creme and keep a few cubes for the final garnish.
Cut the meat into slices and place on a plate on the pumpkin, garnish with the remaining pumpkin cubes.