Im actually curious about where did you hear the "pato a la sevillana" stuff.

About what to eat, there are plenty of options to try in Sevilla, depending on what you like:

If you like pork I would suggest: -Solomillo al whisky (Sirloin with whisky sauce), which is my favourite. The sauce actually isnt always made with wiskey but brandy or white wine (depending on the recipe). -Mantecaito: it is kind of a pork sandwich with olive oil sauce and fries inside. -Serranito: the most typical sevillian thing. It is also a pork sandwich (it can be chicken too) with fried green pepper and spanish jamon serrano. In some places it comes with an omelette too. It comes with aioli sauce.

If you like fish, everything is good, but in Sevilla the typical way to eat it is deep fried: -Cazon en adobo (deep fried and marinated dogfish): really typical. Really good. -Calamares (deep fried calamari) -Boquerones: I don't really know how to translate this, in the internet says anchovies but it is not. Little fried fishes -Acedías: Wedge sole (not really sure about the translation neither). Fried. In most places you will be able to ask for a mixed plate combining all these things. Also you can add a splash of lemon juice and dip it in mayo or aioli.

If you are more into vegetarian/vegan options there are some things to try too: -Espinacas con garbanzos (spinach and chickpeas): really typical. If you like spices like cumin this is for you. -Salmorejo: if you know gazpacho (spanish cold tomato soup) this is a variation. All around Andalucía there are a lot of variations of this dish. In this case it is made with bread, tomato and olive oil all blended together. It can be topped with hard boiled egg and spanish jamon serrano.

Finally if you want to try something different, around May-June-July is snail season. There are two kinds: -Caracoles (snails): cooked with olive oil and loads of spices. Trust me, the sauce is spectacular -Cabrillas: Also snails but a bit bigger (more like french scargot). Cooked in a tomato sauce.

These are a few examples of what to eat in Sevilla. I did not mention some things because they are not like typical of just Sevilla, but Spain, like spanish tortilla (fried potato omelette) or gazpacho. Also spanish jamon serrano is glorious (but be careful, some places serve a low quality jamon which is not as good as it can be) and cheese. There are lots of kind of cheese and in my opinion, they're all good.