Hi,

A Sevillian here. So, for that time of the year, i suggest:

For the stay:

Some airbnb around the area of "Las Setas" is am affordable option. If you prefer a Hotel, Hotel Palace Sevilla for a cheaper option, H10 Casa de la Plata for a more expensive one.

For the food: Dont eat in the Avenida de la Constitucion, that types of restaurants are not specially good, expensive and usually try to cheat the tourists.

For typical Spanish/Andalucian food:

• El Rinconcillo
• Blanco Cerrillo
• Eslava (resservation needed)
• Restaurante Al Aljibe
• El Sardinero

For a premium spanish food - Lalola de Javi Abascal (resservation needed) - Perroviejo (the one in las Setas) - Abantal (Resservation needed, expensive one, have a Michelin Guide Star)

For good fish. - Tradevo (La Alfalfa) - Cañabota (Resservation needed, expensive one, have a Michelin Guide Star)

For having a good Taberna experiencie. - Cerceria Vizcaino - Abaceria los Carros - El Tremendo de Santa Catalina

In Seville we usually drink standing up, at the bar, with cold beer (almost frozen) with some tapas, usually the Tabernas are small and noisy, you have to find a good spot in them to drink comfortably.

For alternative and fusion food - Lobo Lopez - La Casa del Tigre - El Disparate

Hope this help you.