I mix his fruit with baby oatmeal in the morning, he has a fruit he can feed himself, (cut bananas, strawberries, grapes blueberries) Multi grain cheerios, stuff like that for a snack, and then I mix vegetables with the oatmeal in the evening. He gets a tippy with water only with all meals and snacks. Hes nine months next week.
I usually give fruit for breakfast and veggies for lunch and dinner. If your LO is only doing one meal a day right now you can switch every other day, but I wouldn't go a whole week with only one or the other.