Food Icons, Bars, and Buttons from the Mining Co's Southern U.S. Cuisine section. Follow the links from there, and you'll get to see lots of high quality images of peppers, fruit, veggies, and more. You can find some utensils here as well.
Food Icons is a small but useful collection from A+ Art.
FoodShapes Detailed, realistic collection of full color digital food clip art images for Mac and Windows, drawn by professional food illustrator. Custom food illustration/design and stock food images also available.
Free clipart from Don's Kitchen Food, cooking and kitchen related clipart. Produce, prepared foods, packaged goods, pots, pans, gadgets and more. Backgrounds and seamless textures, as well.