I do NOT reccomend sourdough mining company for starters
I disagree. I've been to the sourdough many times and always good. The corn fritters are excellent. Also go across the street, if you have to wait for a table, and visit the chocolate store. it has a huge chocolate fountain that the kids may enjoy watching. Free samples too.
Also for a quick meal, try ther Arctic Roadrunner. I love their Halibut burger.
The drive from ANC to Seward is a must do. The must scenic drive in the country, IMO. You may find whales swimming in the water and sheeps high on the cliff.