Hi K.,
It sounds like you have already received a ton of great suggestions!
Some things I do for my 2 & 4 year olds is involve them in our meals. You can even start now with your little one.
We will sometimes make pizza's on whole wheat pita bread or tortilla's. I spread the sauce on, and I let them sprinkle the cheese and put the toppings on. For Mommy's and Daddy's, we will add peppercini peppers, etc....things they won't eat, but at least that way we all have the same meal, but create it the way we want it!
I also buy frozen already shelled edamame from organic freezer section. They are high in protein, and have a great flavor. My kids love them as the ones I buy are in individual Dora or Sponge Bob packs. They eat these either frozen, thawed in the refrigerator, or steamed. This is a simple addition to add to a meal that they get excited about.
When I make broccoli, we pretend we are dinosaurs eating trees. Ok...kinda hoakey, but they love it!
If you make taco's, you can set aside some plain meat for the baby's meal, but still make a little taco roll up for him but melt the cheese in the microwave so it stays rolled shut for him. That way you and your husband can still make your meat spicy and add the things you want to your tacos.
I hope this helps! They are all things that have worked for me. My rule of thumb is they eat what we prepare for dinner. I don't make them seperate meals - but if they truly don't like something, I will compromise.
Good luck!
S.