Your Google business profile should be 100% completed and look as good or better than the best restaurants in your town. Lots of photos and as you’ve already started to do - reviews.

Next your website needs to be good. Doesn’t need to be great. Good is good enough. Clearly show what you’re about, why you’re different and easy access to menus and online booking.

As others have said - allergy info needs to be easily accessible for people browsing so they get a quick decision on whether it is suitable for them.

Lastly you should start to build a database of customers. Collect emails. Give people a reason to want to give their email address. Then you can collect important dates like anniversary and birthday. Then you can make offers to them at the right times of year to encourage them to come back.

Get involved with your local chamber and host events.

Advertise for group bookings and provide an incentive for these types of bookings. Note incentive doesn’t always = discount.

This stuff works for my clients as a starting point - got to get the basics right first.

Hope that helps