16 ounces linguine
(1) 28 oz can crushed tomatoes
(1) 8 oz container vegetable stock
1 large (or two small) red onion, thinly sliced
8 cloves garlic, thinly sliced
1 large red bell pepper, thinly sliced
1 green pepper, thinly sliced
1/2 teaspoon red-pepper flakes
1 tablespoon salt
1 teaspoon cumin
3/4 teaspoon ground oregano
2 sprigs cilantro, plus extra for garnish
3 tablespoons extra-virgin olive oil
Freshly ground pepper, to taste
2 1/2 cups water
1/3 cup Full-Fat Greek yogurt
Limes, for serving