· Legumes (peas, beans)
Cooler season veges are: brassicas (broccoli, cauliflower, broccolinis, spinach, endive, radicchio)
Warmer season veges are: beans, eggplants, tomatoes
All season options: lettuces, carrots, onions, herbs
If you have a smaller space, consider the following ideas for crop rotation: Instead of making 1 large, raised garden bed, consider having 3-4 smaller ones or consider using larger pots for plants that are more prone to diseases.
When plants get diseases, the disease-causing elements (bacterial, fungal, viral diseases etc) stay in the soil for a while where the infected plants used to be.
If your area isn't big enough for rotation planting, don't plant anything in the garden for a year or two so disease-causing soil elements have nothing to feed on. Consider planting in containers temporarily to ensure vege supply.
Peanuts are great in fixing nitrogen into the soil which improves soil fertility. They are usually followed by brassicas which are nitrogen-hungry.
Peas are good to plant before squash. Beans enrich the soil and are a good crop to plant after tomatoes.
When the same veges are planted in the same spot year after year, the soil may no longer have the nutrients required by the plants.