Those looking to rein in their spending may want to take inventory of their dining habits. The budgeting resource The Simple Dollar says the average American eats roughly 4.2 commercially prepared meals per week. This equates to around 18 meals eaten outside of the home in a given month. That can cost diners roughly $232 dollars per month or more. Budget-conscious diners looking to curtail their spending can be pickier about when they choose to dine out. Simply eating at home a few more times per month can add up to considerable savings.