Using your original concept, I'd open a QUALITY Breakfast, Lunch Comfort Food place incorporating all the best foods I've had at the various places I've eaten all over the country.
The name - "Grammy's Comfort Kitchen". (My bride's Grammy to the Grandkids.)
A signature item would be Biscuits! Served various ways.
All Pork products would come from The Pork Shop, Queen Creek, AZ.
I'd have them blend the sausage to my special recipe. http://theporkshopaz.com
Eggs would be extra large - Hate small eggs served in restaurants.
All breads baked on the Premises! Good Seeded Rye a standout.
BIG Cinnamon rolls & Sticky Buns!
Pies would be a speciality.
Hash would be made in-house.
Veggies from local growers.
REAL mashed potatoes!
You get the picture!