On that note of size mattering, some people may be wondering how big a toaster oven should be when purchasing one.u003cbr/u003eu003cbr/u003eWhile the exact dimensions will differ from make, model, and manufacturer, we recommend checking the internal volume of your toaster oven.u003cbr/u003eu003cbr/u003eA decent-sized toaster oven that can handle small meals and side dishes should be around 10 inches deep and at least half of that tall.u003cbr/u003eu003cbr/u003eOf course, if you plan on cooking larger food items, make sure that you shop and search for a bigger model!