Budgeting for food can be hard because you might not know exactly what you want to eat every month. It’s easier to make a note of what you normally buy each week at the grocery store if you were going to meal plan for a whole week.
You can then multiply this for 4 weeks to see how much you will spend in a month. Keep in mind you might not have to buy mor expensive items every week. For example, you can buy frozen fish that’s more expensive one week but then you won’t have to buy as much meat the next week.