I'm a Boulder City first year resident and Southwest Diner is on my short list of favorite eateries. Indoor and outdoor seating is a feature. We tried outside once but the flies drove us inside. Certainly not the diner's fault. The staff is incredibly hometown friendly. Portions are large enough that you can plan on taking half home for a second meal. My favorite is the one pound hamburger steak smothered in onions with mashed potatoes and gravy. Very few people like, or have tried, liver and onions. It was especially good. Breakfast dishes are very, very good and the stack of pancakes can feed a village for a week. Prices are low for the quality and quantity. The place is always packed so parking is sometimes a concern. Oh yes, be sure you try the Sea Salt-Mineral Oil hand washing compound offered for free in the rest room. Worth the price of admission.