Hello Julia,
I have dined at a few of the restaurants in Downtown Disney while on the dining plan, so the answer is yes! My favorite was
Wolfgang Puck Cafe for a table service meal, as they also have the express side which could be used for counter service meals. I will never forget the baked meringue Key Lime pie I had for dessert...Wow! The food here I found to be a bit on the spicy side, but I don't tolerate any kind of spice in my tummy..so for others this may not be the case. I had the Mahi Mahi and would highly recommend this to everyone.
Planet Hollywood is another one of the restaurants I tried, and if you have never tried this restaurant, I suggest you do...the "theme" side to this dining experience is something else! I had the Beef Dip and enjoyed it thoroughly. My daughter had a pizza, and let me tell you, never have I seen such a loaded cheese pizza for a child...wonderful! They have an extremely varied menu at this location.
Here is a
link for you to view all the available options (as well as the ones that don't participate) for dining in Downtown Disney on the dining plan. One last bit of advice, please make sure to book well in advance (up to 180 days), as these restaurants are very popular and do fill up quickly. Bon Appetite!
Brigitta