Two words - salad bar!!!!!!
If you are a sucker for a good salad you need to come here and build your own heaping plate complete with delicious homemade dressings.
Their soups are excellent - my fave is the chili (it's a soupier version) and the stuffed pepper soup.
Their fried zucchini and provolone sticks are hand-battered and always fresh; both go amazing with their famous ranch dressing.
As for entrees- I honestly have never found one that is absolutely to die for- most are just homemade classics and modern American eats. They add in a special dish here and there (like a summer salad or spicy pasta dish or fish dish during lent) as well. I personally enjoy their rosemary chicken breast with mashed potatoes (ask for rosemary sauce on the potatoes instead of gravy - yummy), their shredded pot roast sandwich with the salad bar, and also the Santa Fe turkey sandwich which sadly was taken off of the menu when I was last there- I think they may bring it back as a limited item in the future as it was reasonably popular.
Their cinnamon rolls ("stickies") are delicious as well, and if you aren't already stuffed, try the "stickies a la mode" for dessert. Or one of their many homemade pies, one of which is at a discounted price every month.
Don't ignore this hometown staple! It's as dear to Pittsburghers as Primanti Bros.