Convenience often costs. Prechopped vegetables, boneless, skinless chicken, prepared sauces and semimade meals all cost more because you're paying for someone's prep time. Find a few minutes each week to do the prep yourself.
Prechop vegetables, skin and bone bone-in chicken breasts, create your own sauces and marinades with canned tomatoes, broths, vinegars and flavored oils, and get all your ingredients ready to create your own "meal kits" for busy weeknights. Just a little extra time in the kitchen, which can also be family bonding time, can significantly reduce the dollars you spend at the store.