Well, it's not a straightforward answer depends what you like and what style of cooking you're going for. but here are a few tips based on my experience, some you mightg.
If I've missed something, drop me an e-mail and I'll see if I can advise on it.
Aubergines
Avocados
Beans
Beetroot
Cabbage
Carrots
Cauliflower
Chickpeas
Chillis
Coconut
Cucumbers
Lentils
Marrows and courgettes (squash and zucchini)
Mushrooms
Olives
Parsnips
Peppers
Potatoes
Pumpkin
Spinach
Tomatoes