Keep offering him what the family is eating. If you start having to make special meals for him, you're going to find yourself having to get chicken nuggets for him when everyone else is eating meatloaf.
Here are some practical suggestions.
1. Put tiny portions on his plate. We pile their plate up, they get overwhelmed. Just a bite or two of each thing.
2. If he doesn't seem to like it the first time, offer it again the next time as well. Someone told me that it takes several times for a kid to decide a new food is good to eat.
3. Don't coddle him about the food. Be firm. "This is supper. This is what we are eating as a family."
4. Do cut down on the liquids before meals. Otherwise, he'll fill up on the liquids and not be as hungry.
5. Reward him when he eats what you all are eating. "What a good boy! Look, he's eating..."
6. He's still pretty young, so I think there are still some foods he shouldn't have before age 2. Peanut butter comes to mind. I'm sure there are others. I had serious food allergies as a kid, so I was pretty careful with mine.
But I also witnessed my niece controlling what her family was going to eat by refusing to eat what was offered to her. They would even make special trips to McDonald's. I decided when I had kids I was going to be the parent, not let my kid direct what we would eat, and that they would eat what we eat. We have great eaters. When we go out to eat, they are happy to eat what we eat. My daughter's favorite restaurant is Chinese!
One more thing. Very few kids actually starve to death. Don't be anxious if they refuse to eat because you're not giving them what they want. Just encourage them to eat whatever the meal is. If they don't eat it, put it up, and offer it to them later when they are hungry.
They won't like everything, but they do need to try new foods. We read "Green Eggs and Ham" every once in a while to remind the kids that new food is not nec. a bad thing.
You fix food that you like. Make sure to fix their favorite meals every once in a while as well. "Tuesday is your night to pick what we eat. What would you like?" That gives them a say and they love to have a little control.
Good luck!