If you can start your tomato plants indoors, they'll grow great. When the weather warms enough the cold won't kill them or they start to flower, you can move them outside so bugs can pollinate them (or you can manually pollinate them). If you keep them in large planters, you can even move them inside where they get lots of sun and what fruit is on the vines will continue to ripen in the fall.
The same goes for pepper plants, too. My grandfather (who grows lots of different peppers) even did some experiments with keeping the plants alive through the winter. They wouldn't produce anything during the winter and didn't really produce any sooner than a young plant, but they did produce more over the season.
Don't forget the fresh herbs. You may never go back to the store-bought dried stuff again.