Hi L.! I'm definitely not an expert, but this is what I'm doing with my 6-month old right now (and also did with my other two when they were babies):
Morning - bottle, then about half-hour later, oatmeal mixed with a step 1 fruit
After morning nap - bottle, then about an hour later one fruit and one veggie
After afternoon nap - bottle
When we eat dinner - rice cereal mixed with a veggie
Then one more bottle before bed.
It took a while to get to this point. We started with just mixing the veggie in at dinner time and then slowly started adding fruits and veggies at the other meals. She still doesn't eat much at lunch time.
She's also just started with finger foods - Cherrios, Gerber Puffs, biter biscuits.
I have one really big piece of advice: if she refuses a food, give it to her at least 12 more times before you decide to never give it to her again. I made the mistake of assuming one or two (or three or four!) rejections means they do not like that food and I should never give it to them again. Now both my older kids are horribly picky eaters. Since then I've done a lot of research and learned that children can sometimes require at least 10 to 12 exposures to a food before they will accept it! So keep at it!
Another bit of advice is to not worry if your baby doesn't seem hungry at any particular meal. Unless it goes on throughout a day or two, if the baby rejects the food, don't worry about it and definitely don't force it. Just try again at the next meal.
Like I said, I'm definitely far from an expert, but maybe you can learn from some of the mistakes I've made! I'm definitely trying new things with this baby!
Good luck to you.