Chefs de France has their French menu at $14.95 and you get onion soup, ham & cheese sandwich and creme brulee. That's a pretty good price for a three course meal.
Also, at Le Cellier you can get really full just eating the cheddar cheese soup and their pretzel bread. That'll set you back $4.99
I really don't think Epcot restaurants are that expensive. Take Teppanyaki for lunch. For their chicken teppan entree it's $10.95. I know that when I go for lunch here in Akron, OH to a hibachi/teppanyaki place, it's $8.95 for the chicken entree. So Teppanyaki in Epcot is only $2.00 more but for that $2.00 is buying me atmosphere, location, service and quality. I would say that's a pretty good bargain.