Farmer’s cheese is a mild curd cheese (like cottage cheese) with most of the liquid whey pressed out. It can be eaten on its own or used in cooking. Queso fresco, a crumbly, Mexican cheese, has a similar texture and a slightly salty taste.
Heat oil in large nonstick skillet or wok over medium-high heat. Add squash and red onion and cook 7 minutes, or until onion is soft, stirring often. Stir in evaporated milk, oregano and salt. Bring to a boil, reduce heat to low, and cover. Simmer 10 minutes, stirring once.
Add bell pepper, peas and garlic, cover, and simmer 5 minutes. Stir in corn and cheese, and simmer 5 minutes more, or until squash is just tender but still holds its shape. Stir in lime juice and freshly ground pepper to taste. Serve hot.