Lamprais (“lump rice”) are a typical Sri Lankan meal. It’s rice and spicy curries and accompaniments all wrapped up in a banana leaf and steamed together. If you’re familiar with Malaysian food, this is the Sri Lankan version of Nasi Lemak.
Hoppers are a carb, i.e. like a pancake/crepe you use to scoop up the dishes. There are different versions like egg hoppers, string hoppers (which resembled steamed thin noodles), etc.
Fish and seafood are pretty popular. One of my good friends in high school/college was Sri Lankan and I always loved going to their house for special occasions because all the women would cook an item, potluck style. I could always count on seeing fish curry, shrimp and fish cutlets. My friend said Sri Lankans can’t live without their seafood.
Sri Lankans have their own versions of curries and dals, like in Indian food, but they tend to be more heavily spiced.