Baked Haddock with Buttery Ritz Cracker Topping

Why You’ll Love This Recipe

• Classic New England comfort: mild, flaky haddock under a buttery, crisp Ritz crumb.
• Family-friendly flavors with pantry staples and fresh lemon-parsley brightness.
• Restaurant-worthy plate with creamy mashed potatoes and crisp-tender green beans.
• Fast and forgiving: the fish bakes in under 15 minutes.

Grocery List

• Produce: Yukon Gold potatoes, green beans, lemon, flat-leaf parsley, garlic
• Dairy: Unsalted butter, milk, sour cream (optional)
• Pantry: Haddock fillets, Ritz crackers, olive oil, kosher salt, black pepper, garlic powder, paprika

Full Ingredients

Haddock

• 4 haddock fillets (about 6 oz / 170 g each), skinless
• 1 tbsp unsalted butter, melted (for brushing fish)
• 3/4 tsp kosher salt and 1/2 tsp black pepper (divided, for seasoning fish)
• Lemon wedges, for serving

Ritz Cracker Topping

• 1 sleeve Ritz crackers (about 1 cup crumbs / 90 g), lightly crushed (pea-sized pieces)
• 5 tbsp unsalted butter, melted
• 2 tbsp fresh parsley, finely chopped
• 1 tsp finely grated lemon zest
• 1/2 tsp garlic powder
• 1/4 tsp paprika
• Pinch of black pepper (optional)

Mashed Potatoes

• 2 lb (900 g) Yukon Gold potatoes, peeled if desired and cut into 1 1/2-inch chunks
• 1 tsp kosher salt (for the cooking water), plus more to taste
• 4 tbsp unsalted butter
• 1/2 cup (120 ml) whole milk, warmed
• 1/4 cup (60 ml) sour cream (optional, for extra creaminess)
• 1/4 tsp black pepper

Green Beans

• 12 oz (340 g) green beans, trimmed
• 1 tbsp olive oil
• 1 tbsp unsalted butter
• 1 small garlic clove, minced
• 1 tsp lemon zest or 2 tsp lemon juice
• Kosher salt and black pepper, to taste
• Pinch red pepper flakes (optional)

Step-by-Step Instructions

Step 1: Preheat and prep the fish

Heat the oven to 425°F (218°C). Lightly grease a 9×13-inch (23×33 cm) baking dish. Pat the haddock fillets dry with paper towels—dry surfaces help the crumbs stay crisp. Arrange the fish in the dish, spacing pieces slightly apart. Season the tops with about 3/4 tsp kosher salt and 1/2 tsp black pepper total. Brush the fillets with 1 tbsp melted butter.

Step 2: Start the mashed potatoes

Place the potato chunks in a medium pot, cover with cold water by 1 inch, and add 1 tsp kosher salt. Bring to a boil over high heat, then reduce to a lively simmer. Cook 12–15 minutes, until a knife slides in easily. While they cook, warm the milk and set aside. Drain well when tender and return potatoes to the hot pot to steam off excess moisture.

Step 3: Mix the Ritz topping

In a medium bowl, combine the crushed Ritz crumbs, 5 tbsp melted butter, parsley, lemon zest, garlic powder, paprika, and a pinch of pepper. Toss until the crumbs are evenly moistened and clump slightly when pressed.

Step 4: Top and bake the haddock

Divide the crumb mixture over the fish, pressing lightly so it adheres in an even layer. Bake on the center rack for 12–15 minutes, depending on thickness, until the fish flakes easily with a fork and reaches an internal temperature of 145°F (63°C). For deeper color, broil for 1–2 minutes at the end—watch closely so the crumbs do not scorch.

Step 5: Finish the mashed potatoes

Mash the hot potatoes with 4 tbsp butter. Stir in the warm milk and sour cream (if using) until smooth and creamy. Season to taste with salt and black pepper. Cover to keep warm.

Step 6: Cook the green beans

Heat the olive oil and 1 tbsp butter in a large skillet over medium heat. Add the minced garlic and cook 30 seconds until fragrant. Add the green beans and a pinch of salt and pepper (and red pepper flakes if using). Sauté 3–4 minutes, tossing often, until bright green and crisp-tender. Finish with lemon zest or a squeeze of lemon juice.

Step 7: Plate and serve

Spoon a generous scoop of mashed potatoes onto each plate. Add a portion of green beans. Slide a fillet of baked haddock alongside, letting any buttery juices in the baking dish drizzle over the fish and potatoes. Sprinkle with extra parsley and serve with lemon wedges for squeezing at the table.

Pro Tips

• Pat the fish very dry so the topping stays crisp and adheres well.
• Crush crackers to pea-sized bits, not fine dust—larger crumbs bake up extra crunchy.
• Warm the milk before adding to the potatoes for silkier mash that stays hot.
• Check doneness early: thinner fillets can be ready in 10–12 minutes.
• For ultra-crisp topping, broil briefly at the end—but keep the oven door cracked and eyes on it.

Variations

• Swap the fish: cod, pollock, or hake work beautifully with the same timing.
• Cheesy twist: add 1/4 cup finely grated Parmesan to the crumb mix.
• New England spice: replace paprika with 1 tsp Old Bay or add a pinch of cayenne for heat.

Storage & Make-Ahead

Leftover fish is best within 1–2 days; reheat at 300°F (150°C) for 8–10 minutes to re-crisp the crumbs. Store mashed potatoes and green beans separately for up to 3 days; rewarm potatoes gently with a splash of milk. The Ritz crumb mixture can be made up to 2 days ahead and refrigerated; bring to room temperature before using. Freezing the baked fish is not recommended (the topping softens), but mashed potatoes freeze well up to 1 month.

Nutrition (per serving)

Approximate: 800 calories; 42 g protein; 67 g carbohydrates; 36 g fat; 5 g fiber; 1050 mg sodium. Values will vary based on brands and exact portions.