Leaf lettuces (Oakleaf, Simpson's, Red Sails, etc.), green beans, sugar snap peas, English peas, starts of cauliflower. Broccoli and cauliflower are best put in as started plants at this stage.
We are in Central Texas, so take this advice and adapt it to your area. By the way, where are you? Zone and area would be a big help (not asking for your street address, just an idea of where you are gardening.)