White Beans and Cabbage

Bahan-bahan (4 porsi)

• 2 tablespoons olive oil
• 5 medium red potatoes (scrubbed and cut into tiny cubes)
• 1 small yellow onion (roughly chopped)
• 1 1/2 cups cooked canneli (white navy or great northern beans, or 1 can drained)
• 1 small head green cabbage (finely chopped)
• freshly grated Pecorino Romano or Parmesan cheese
• kosher salt and freshly cracked pepper (to taste)