Step 1

In a 12-inch skillet over medium, heat the oil until shimmering. Add the onion and ¼ teaspoon salt, then cook, stirring occasionally, until softened and translucent, 5 to 7 minutes.

Step 2

Add the garlic, tomato paste and pepper flakes, then cook, stirring, until the tomato paste darkens slightly and begins to stick to the pan, about 2 minutes. Stir in the crushed tomatoes, ½ cup water, ½ teaspoon salt and ¼ teaspoon black pepper. Bring to a simmer, then reduce to medium-low and cook, stirring occasionally, until slightly thickened, 7 to 10 minutes.

Step 3

Add the beans and bring to simmer over medium, stirring occasionally. Off heat, stir in 4 tablespoons of dill (or 2 tablespoons of marjoram), then taste and season with salt and black pepper. Transfer to a serving dish, sprinkle with the feta and remaining dill (or marjoram), then drizzle with additional oil.