1. Melt butter in a Dutch oven or large pot over medium heat. Add mirepoix, fennel, and 1/2 teaspoon salt. Cook, stirring frequently, until softened but not browned, 8 to 10 minutes.
2. Increase heat to medium-high and add stock and potatoes. Bring to a simmer, then cover and cook until potatoes are just tender, about 10 minutes, adjusting heat as needed to maintain a gentle simmer.
3. Stir warmed cream, peas, and fish into pot and return to a gentle simmer. Cover and simmer until fish is opaque and cooked through, about 5 minutes.
4. Remove from heat and let sit, covered, 5 minutes. Season with salt and pepper to taste, then divide among bowls, sprinkle with reserved fennel fronds, and serve.
Source: Hannaford fresh Magazine, March-April 2023