Sear the shrimp on one side in a skillet on medium-high heat with a little bit of vegetable oil, salt and pepper. Add the shallots and garlic. Once the shrimp are partially cooked, after about 1 minute, remove from the skillet. Next, add the bananas and break up the bananas with tongs while sauteing to essentially mash. Saute for 1 minute.
Add the water/soy mix, sambal and honey and saute another minute until heated through. Return the shrimp to the skillet and finish cooking, 2 to 3 minutes. Finish with the lime juice and cilantro, and then season again if necessary.
Spoon the banana sauce into bowls. A small concave vessel with a large bell is best. Place 5 shrimp to a bowl on top of the sauce. Garnish with onion sprouts.