We've been pushing over $1,500 per month since COIVD started, roughly broken down to about $4-500 per month for staples at Costco and then $2-250 per week at grocery stores (click and collect, etc). Dining out and take out has been cut back dramatically, but is probably still another $250/month.
It seems the kids being home from school full time has increased our food expenses. Where as we could pack lunches and snacks for school before, it now seems like with easy access to the pantry and fridge, they're constantly snacking... Yeah, it's the kids
Disclaimer - Household is 3 adults and 4 young children.