Cut the Hokkaido pumpkin with the skin into bite-sized cubes, as well as the potato. Cut the peppers + tomatoes into pieces.
Chop the onion + garlic into small pieces + sauté in a large saucepan until translucent. Drain + add corn. Now add the other vegetables except for the pumpkin + mix. Pour in the broth, add the marjoram + cover and simmer for 15 minutes over a moderate heat. Then add the pumpkin + simmer for another 15 minutes. Season to taste with the spices + pour the cheese over the stew or place in a bowl like Parmesan on the table.