I'm surprised no one has written about this place before (but as an infrequent contributer to this board - I live in Oakland - I may have missed a post).
Michael's Grill in Santee (former location of the wonderfully named "Chick 'n Pigg") has great food at low prices (big portions for entrees mostly in the $8-$10 range). The food is a range of American and Asian-inspired dishes, and the decor is quite pleasant (nice wave mosaic across the floor, white tablecloths). I've been happy with their food in general, but there is one dish on their menu that is astounding.
I am obsessed with their sole filet. At $8.75 it is an absolute steal! It could be priced easily at $30 in an upscale restaurant. Unfortunately Michael's doesn't have a website so I'm going from memory, but the sole is very tender and in a light soy/ginger glaze. My boyfriend and I both ate here together on our last anniversary and both ordered the sole. It melts in your mouth. It's amazing.
Go and order it now.
9621 Mission Gorge Rd (near Cuyamaca), Santee