Gateway Pizza and Sub in Columbia MD, near the costco.
Sadly wwwaaaaayyyyyy better than anything nepal has to offer. Trust me...went to nepal last year and my goal was to have "authentic" momo since i've haven't been there in 10+ years....was very disappointed that US has better tasting momo than nepal itself. Trust me I went searching for the best momo in nepal....and everyone of them could not compare it to Gateway.