I once had something called "Avalon Style Shrimp", which was basically cooked shrimp on top of garlic bread drenched with probably the most amazing sauce I've had in my life - this creamy, buttery, shrimpy delicious white sauce. Literally I spent the rest of the day thinking about how I was going to replicate that masterpiece to the point where my dad made fun of me for it lol.
It sounded basic so really didn't expect it to be the best seafood dish I've ever tried, but my god was it good. What was your experience (restaurant or homemade) where you didn't think something would be as amazing as it was?
Edit: wanted to thank everyone for their awesome responses, keep em coming! I've learned about a lot of interesting dishes and foods thanks to you. I really love this community