The short answer is, yes, you can definitely substitute tomato sauce for tomato paste in a pinch. But, it's not always a one-for-one swap, and you'll need to make some adjustments to get the flavor just right. Think of it like trying to swap out a strong espresso for a weaker coffee - you'll need to use more of the weaker stuff to get the same kick.
So, how do you make the switch from tomato paste to tomato sauce? It's actually pretty simple: just use a bit more tomato sauce than the recipe calls for in tomato paste, and then reduce the amount of liquid in the recipe accordingly. It's like adjusting the seasoning on a dish - you're just tinkering with the balance of flavors until it tastes just right.
