While I never seem to get the name quite right, the avocado torta with refried beans is my favorite avocado sandwich ever, and Mi Pueblo has allowed me to enjoy it for years. The bread is what makes it, in particular -- it's a very light, flaky roll. The sandwich is warm, and the avocado is plentiful.
I haven't dabbled with a whole lot else on the menu because I'm so hooked on that torta, but other people have enjoyed their entrees when they've been along with me.