Calentado is the Colombian way with leftovers: yesterday's food fried up with fresh tomato and onion and eaten for breakfast. This is the sancocho version, with the broth drained off so the pieces catch and brown in the pan. Twenty minutes, two servings, no extra salt needed.
No salt is needed: the sancocho was already seasoned yesterday. A fried egg on top is the usual way to serve it, with avocado, arepa and hot chocolate or coffee alongside. Leftover sancocho should go in the fridge as soon as it has cooled and be used within three or four days, and the calentado should be heated right through until it steams. If you want more from it, add chopped garlic, cumin, fresh cilantro, a squeeze of lime or a little ají.