Talk about a testament to a restaurant's success: Earlier this year, Rito's streamlined its already compact menu — farewell, tacos and tostadas — and it hardly seems to have put a dent in business. Nope, most days there's still a line here at lunchtime, even though this no-frills eatery keeps a really low profile (so low that there's not even a sign on the front door). Of course, it's worth the wait for excellent burros and chimichangas, served up plain or enchilada-style. Go for the red chili burro, with tender shreds of beef smothered in smooth, lip-smackingly spicy sauce; the green chili burro (Rito's claim to fame), filled with moist chunks of pork; or the great beans and rice. It's all homey, flavorful, and easy on the wallet. And be sure to stake out a spot at one of the picnic tables outside, where you can join other happy customers chowing down on one of the best lunch deals in town. After one whiff of the good stuff cooking back in the kitchen, we promise you'll be too hungry to take your takeout back home.