This is a great place to go for lunch and take advantage of the buffet. There is nothing really special about West Allen Grill... it is just solid food at a fair price. If I could give them any feedback it would be to give a pep talk to their wait staff. They are not the most friendly bunch and a bit on the complacent side.
If you are looking for lunch... you can't beat the buffet that includes meat, soap, salad, baked potato, and bread. The Sunday breakfast buffet is actually amazing and the guy they have to make omelets is REALLY good. A great stop after checking out the Wentzville Flea Market that is in walking distance.