We eat at 7/7.30am breakfast 11.30 lunch and 5pm dinner. This is at weekends when we have all meals together. Weekdays breakfast at 7am (he has lunch at nursery) and we have a snack dinner at 5.45.
I started with lunch and then moved to breakfast-lunch. Will be introducing tea at the weekend too!
Start with dinner then if it’s more convenient for you and I’d recommend a floor travel high chair until you get a table I try to always eat at the same time as baby to create good habits