Bottomless anything is good, especially if it involves champagne. Just order brunch at the Coterie Room or Ma'ono (both pretty damn great) and your mimosa ($10 at the former, $12 at the latter) will have no bottom.
The goal of Biscuit Bitch is "to bring fresh, homemade food with attitude to the partying masses of Downtown Seattle" on Friday and Saturday nights. They do this with biscuits and gravy/jam/etc. served in various bitchy incarnations for prices ranging between $5 and $13.