I try to go weekly for fresh things and if meat/poultry is on special, I load up and freeze it. $25-100 depending on what I need/want.
We go once a week and spend $50-$100 depending on what we decide to make for the week. I occasionally go during the week to buy things we don’t have to bake with. Which has become more recent due to fall!
Once a week I go to the grocery store and Costco. Between the 2 stores I spend $150, that is for 4 people (2 little ones).
We have a budget of $300/month and we go on two bigger trips and pick up small things as we run out.