Vegetable with I
- Crisp lettuce variety; definitely a vegetable. 
- Common shorthand for iceberg lettuce, a veg. 
- Edible vine vegetable (tindora), common in Asia. 
- USA term for a potato variety; a veggie. 
- Common name for white potato; a vegetable. 
- Onion variety; definitely a real vegetable. 
- Plural is fine; Idaho potatoes are a veg. 
- Also called ice plant; edible leafy vegetable. 
- Ice berg
- Italian Parsley
- Indian pea
- Indian fig
- ice cabbage
- iceberg cabbage
The words in the list Vegetable with I come from players of the word game City, Country, River.