Definitely possible. Just looking this Saturday July 20th (should be the busiest day of the week).

CRT (I think this is the most popular restaurant on property) has the following for a table of 4:

8:30, 9:00, 9:20, 9:30, 11:05, 11:25, 11:35, 2:00, 2:20, 2:35.

Not what Disney wants to see.

If the family of 4 eats at Cosmic rays (2 adults and 2 kids) they spend about $50 for the 4 of them.

If the family of 4 eats at CRT (2 adults and 2 kids) they spend $266 for the 4 of them.

For every 1 family that does CRT instead of cosmic rays, they gain ~$215 in revenue. The same as 7 or 8 people buying G+. (yes, I know there would be some expense differences)