Peas can be grown in the fall, although you probably won't get the quantity or quality of a spring crop. Select peas with a short maturity time, like Sparkle or Frosty. Peas seeded at the end of August will mature about the end of October. Lettuce is another cool season plant which can be grown as a fall crop. Plant leaf lettuce about August 1 to have lettuce at the end of September.
Spinach works the same way.
Look at it this way, though. You went to all the trouble of spading, fertilizing, mulching, weeding and watering to bring fresh vegetables from the earth. Having invested that much, you may as well go a few steps further to grow as much and as long as you can. Rutgers Cooperative Extension of Atlantic County provides information and educational services to all people without regard to sex, race, color, national origin, disability or handicap, or age.