Authentic Mexican Recipes?

So my parents are making me and my sister both cook one meal a week once school gets out. I've been trying to figure out something both new and something everyone would like. Also, two people in my family are gluten intolerant which makes this even harder. I wanted to make this noodleless veggie lasagna but my sister wouldn't like it so I'd rather try something else initially. Then I thought of Mexican food. Everyone in my family loves the stuff, but we don't like it when it's too Americanized. I'm looking for recipes that you have tried so that I know it's a good recipe. Also, please no enchiladas or tamales. We already make those. Remember, no wheat. Thanks!