Calories..?!

Calories..?

Was wondering how many calories are in a bowl of spaghetti with sauce?

This is a "how long is a piece of string" question. Bolognaise sauce, for instance, could be made with low fat beef and very little oil, or high fat beef and lots of oil. Obviously the fat content will make the main difference, times the quantity you are putting on. Otoh, if it's pesto sauce, you wouldn't put that much on, even though it has quite a high proportion of olive oil.

The only way to work this out is to weigh each of the ingredients and calculate from there. Or if it's a bought in sauce, look on the label and then work it from how much you used.