To fix the problem, look no further then COGS.
1. Smaller menus (less margin in the trash)
2. Aggressively seasonal selections (cheaper then any other food)
3. Be a part of the community you are serving (intangible but sticky customer base)
4. Pair down customer capacity (smaller team = more hours per employee)
5. Salaries instead of hourly (cheaper, longer term employees)
6. Add the frickin 5% to that $30 plate of food
7. Consider limited hours (staying open 16 hours is stupid and wasteful)