Can cassava and winter melon be used to stew pig's feet together?

Yes.

Masanella is a nutrient-rich fungus that is rich in protein, vitamins and minerals. Winter melon contains dietary fiber, vitamin C, potassium and various nutrients. When stewing pig's feet, the horseradish is Stewing mulberry mushrooms and winter melon together can make the meat of the pig's feet more tender and absorb the nutrients of the two ingredients.