Is spaghetti sauce safe to eat if it was left out overnight? My Filipino roommate made sweet spaghetti with hot dogs, ham, and cheese and it tasted amazing! Unfortunately, he put the leftover noodles in the fridge but forgot to put all the sauce in the fridge as well and left it in the pot sitting overnight, 19 hours left on the counter to be exact. 

Is this sauce with the hot dogs, ham, and cheese in it still safe to heat up and eat with the noodles in the fridge? I really would love to have more of it, it's the best spaghetti I've ever had in my life. I love it so much. I would hate for it all to go to waste.