Manchego is a classic Spanish cheese made from cow's milk. Depending on how it is used, other cheeses such as romano, Parmesan, white cheddar, or Monterey jack can be substituted.
For other cheese varieties, see American, añejo, asadero, bel paese, blue, brousse de brebis, cabrales, caciotta, cheddar, colby, cotija, cream, Emmenthaler, farmer, feta, fontina, goat, Gorgonzola, Gorgonzola dolcelatte, gouda, gruyère, Jarlsberg, kasseri, Kefalotiri, mascarpone, Maytag, mizithra, Monterrey jack, mozzarella, panela, Parmesan, pecorino, provolone, queso fresco, ricotta, romano, roquefort, Stilton, Swiss, and taleggio cheeses.