Unlike American staples such as hamburgers, Wheaties, and milk shakes, Mexican food doesn’t require generous helpings of ketchup and mustard to be fully appreciated. Enjoy independently delicious south-of-the-border fare with today’s Groupon. For $10, you get $20 worth of authentic Mexican cuisine at Tio’s in Fontana.

Tio’s flips inactive stomachs into full digestion mode with a menu of Mexican cooking designed to cure hunger from morning until night. Guests can subtly spice up evening dishes such as the two cheese enchiladas ($6.99) or the carne asada ($8.59) by adding hot sauce or reciting risqué historical limericks, or combine a jumbo bag of chips ($7) with hard-shell tacos ($2.09+), lovingly encasing tender beef, chicken, or carne asada. Despite all odds, beef tostadas ($4.99) successfully pair red meat and crispy tortillas, and a plate of huevos rancheros ($5.49) or a sausage burrito ($4.49) keeps morning appetites from commandeering the neighbor's waffle iron. Replete with cozy décor that reflects the owners’ heritage, Tio’s gives off tastily relaxed vibes.