What vegetables would typically be found in the Indian dish "saag aloo"?

The simplest translation of saag aloo into English is “dark leafy greens”(saag) and “potatoes” (aloo).

Saag, also spelled sag or saga, is an Indian subcontinental leafy vegetable dish eaten with bread such as roti or naan, or in some regions with rice. Saag can be made from spinach, mustard greens, collard greens, basella, finely chopped broccoli or other greens, along with added spices and sometimes other ingredients such as chhena.