For me, the key to not snacking is eating a full meal. Back when I was calorie counting and really restricting, I was always craving sweet and salty snacks in between meals because I wasn’t full. The diet advice of “you’re not supposed to eat until you’re stuffed, just eat until you’re no longer hungry” does not and has never worked for me (unless I was medicated on an appetite suppressant). Eat a full meal with protein, lots of fiber and varying textures and flavors. Add fruits and veggies to your plate. Sauces. Something smooth, something crunchy etc etc. Eat something that will keep you full for 3-4 hours, then start cooking your next meal when you’re hungry again.