i really dislike Prego: too sweet for me and the flavor is weak
my grocery store has nice canned San Marzano-type tomatoes for about $4 for a big can. Enough to make maybe 2 jars of sauce.
You need to add your own herbs, spices, and simmer a bit but the end result is generally as good as the $10/jar fancy brands. I keep a fancy brand jar in the cupboard in case i don't have time, but i try to simmer my own sauce as often as possible
My go-to herbs are coyote mint, yerba buena (Clinopodium), Mexican oregano (Lippia) and california bay leaf. i will also throw in some toasted garlic and some hard cheese when on hand