Mexican food is extremely popular. In fact, it is so popular that there are Mexican restaurants almost everywhere all over the United States. And no, Taco Bell does not count as one of these options.
Sure, the Mexican food that Americans think of is the slightly Americanized version of the Mexican food, but still it is very similar to what they eat in Mexico.
One of the staples of Mexican cuisine is the taco. Whether you are eating a soft taco or a hard taco, they are both very common options in Mexico or the United States. If you want more of an authentic Mexican taste then the corn tortilla is the option to go for. While this is something that turns off many Americans, if you are able to track down an authentic Mexican joint in the US then it's very likely there will be soft corn tortillas available. Personally, I feel like this is an incredible option.
Of course when it comes to side dishes there are the classic options of rice and refried beans. If you are an American then it's very possible that the only time you have ever ate refried beans is when you are enjoying Mexican cuisine. And then the rice is just a little different when there is the Mexican touch on it. The side dishes are just different from other foods Americans eat and very delicious. These are sometimes the only two sides available at Mexican restaurants and that's quite alright.
Tamales are a very popular Mexican dish. They can be had for either breakfast, lunch or dinner. They can be either red or brown. There is also an option that is the complex brown mole sauce which completely transitions the tamale. You can enjoy tamales with a cup of atole, which is a sweet, thick drink made of corn.
Another staple of Mexican cuisine is the quesadilla. These are very popular and even restaurants that are not Mexican serve these. They are so simple. Grab some cheese, some chicken, some peppers and onion and grill it up and you are good to go. You can have them in the morning or in the evening. All it takes is some salsa, which can even be store bought, and some sour cream and you are up and running with some tasty quesadillas. They can be made in a matter of minutes. If you already have some chicken then it can be a matter of seconds.
Odds are there is a Mexican dish for everyone. These were some of the more popular ones, but you can dig deeper and find the more unique options.