While grill is preheating, make corn salad: cut fresh kernels off the corn and place into a bowl. Drag the back of a knife across the corn cobs to remove the milk and add that to the bowl as well. Stir in the squash, cilantro, lime juice, Jalapeño, green onion, salt, pepper and olive oil. Taste and adjust seasonings to your liking. Store in refrigerator.
Grill hot dogs to your liking and add to soft buns. Top with corn salad and serve immediately.