hash house a go-go is great for breakfast
capriottis has good sandwiches
pepe's tacos for a good steak burrito
grimaldi's has good pizza
sen of japan for great sushi and a nice quiet atmosphere
pop's for greasy cheese steaks
yassou greek grill for an excellent 'big fat' gyro (get the greek fries as well)
kilroys for quite possibly the best burgers in vegas
rosemary's restaraunt on sahara for a great dinner (tons of excellent reviews)
hope that helps
