Tip Nº 01
Mercadona by Plaza de Castilla (10-15 min downhill from either hostel, line 5 bus €1.40 if you don't want the climb back) is the budget pick. Fresh spaghetti €1.50, cherry tomatoes €1.50/kg, manchego from €5, Tempranillo from €3.50/bottle. Card accepted, locals shop here.
Tip Nº 02
Carrefour Express on Calle Comercio (open 8h-22h, four minutes from Oasis) is convenient but 25-30% more expensive than Mercadona. Use it for late-night or rushed shops; do the proper week's haul at Mercadona on day one.
Tip Nº 03
Aglio e olio with manchego shavings recipe for the hostel kitchen: 400g spaghetti, 6 garlic cloves sliced, 4 tbsp olive oil, chili flakes, 60g manchego. Cook spaghetti al dente, gently fry garlic in olive oil for 90 seconds (don't let it brown), toss pasta in the oil with chili and a splash of pasta water, finish with manchego shavings off the heat. €5 of ingredients feeds four. Pair with a €3.50 Tempranillo Crianza.
Tip Nº 04
Neither kitchen has an oven. Plan around pasta, paella (cheating, in a deep frying pan), tortilla española, gazpacho, salads, and tapas-style boards with manchego, ibérico, olives, and bread. No roast chicken, no baking.
Tip Nº 05
The 16h-20h restaurant closure in Toledo's casco histórico is universal, even for the tourist traps. Lunch ends sharp at 15:30, dinner starts 20:00 at the earliest. The supermarkets stay open through the gap. The hostel kitchen is the answer to the Spanish rhythm, not a backup.