Just thinking about Conejitos my mouth begins to water -- their refried beans and rice are the real reason I go back time and time again. We went there when we were young and single, we go there with kids -- you'll see a broad slice of Milwaukee in this one little restaurant. I find this is the place where everyone has a favorite dish -- and I've heard testimony given about the wonders of both their Chicken Mole and their "Plate Lunch". I am a Tostada girl myself -- but their guacamole is great, and their margarita's are tasty. The best part is their nearly fast-food pricing and very speedy service, when one would expect much higher pricing from their ambiance and expensive plates. :) The casual atmosphere is good for kids, although with kiddies along we always avoid the "original" smog-filled space (where you can jostle for table space next to total strangers) and opt for the renovated space next door.
Oh, and if it's quiet enough and you've had one too many margaritas, the staff will simply smile if you choose to have a lovely dance with your date in the middle of the aisle...they've apparently seen it all before.