THE COOKING NOTEBOOK · Seafood

How to seal and bake a tuna and pepper slab pie

A homemade yeast-crust slab pie filled with tuna, soft peppers and onions.

THE COMPLETE FREE RECIPE

Tuna and pepper Galician-style pie

A homemade yeast-crust slab pie filled with tuna, soft peppers and onions.

3 hr 10 minEstimated total time1 rectangular pie, cut into 6 portionsYield
A homemade yeast-crust slab pie filled with tuna, soft peppers and onions.
Read the walkthrough

Ingredients

Volumes are approximate. For baking, use a scale; Metric keeps the specified gram weights.

Instructions

  1. Stir yeast and sugar into the warm water, about 100–110°F (38–43°C), and stand for 10 minutes. Mix with flour, 30 g oil and 4 g salt. Knead for 8–10 minutes until smooth. Cover and let rise for about 90 minutes until puffy and roughly doubled; allow longer in a cool room.
  2. Meanwhile, heat about ⅞ oz (25 g) oil in a wide skillet. Cook onion and pepper for 15–18 minutes until soft. Add tomatoes, paprika, remaining salt and pepper and simmer for 10 minutes until moist but no longer watery. Fold in drained tuna, scrape into a shallow dish and cool for 25 minutes. Retain all filling and juices.
  3. Heat the oven to 375°F (190°C). Divide dough into two nearly equal portions. Roll each between sheets of parchment into a rectangle about 14 by 10 inches (35 by 25 cm), making the bottom slightly larger. Place the bottom on a large baking sheet. Spread all cooled filling over it, leaving a 3/4-inch (2 cm) border. Add the top, fold and pinch edges firmly, and cut three short steam vents. Brush with the remaining 5 g oil.
  4. Bake for 35–45 minutes until browned, the bottom crust is cooked and the filling center reaches 165°F (74°C). Rest for 15 minutes before cutting into six portions. Refrigerate leftovers within 2 hours, use within 3–4 days and reheat to 165°F (74°C).

Estimated nutrition

Per serving · 1 of 6
Calories
422 kcal
Protein
19.8 g
Total carbohydrate
60.1 g
Total fat
11.6 g
Total sugars
5.5 g

Calculated from the listed ingredients and yield. Brands, draining, cooking and portioning can change the result. Not a laboratory analysis.

Calculation notes & sources

ESTIMATED per serving. Brand, crop, preparation, draining, pan residue and substitutions change actual nutrition. Not laboratory analysis. Each ingredient retains its primary food description and state. All listed ingredient masses are counted; cooking moisture changes do not change the stated portion count. No generic nutrient-retention factor is invented. Calories are kcal; protein, total carbohydrate, fat and total sugar are grams. Total carbohydrate includes fiber and is not net carbohydrate. Fiber and sodium are not displayed. Equal portions or explicitly counted items define the stated recipe yield. US/Metric display changes do not change these canonical inputs. Primary-source supplements are retained per ingredient where USDA lacks a field; missing values are never silently changed to zero. All filling and dough divided into six portions. No egg wash or dairy ingredients. Contains wheat and fish; use plain canned tuna and seasonings without incompatible additives.

View the ingredient calculations · Source 1

Times and nutrition are estimates. Check product labels, quantities and safe cooking. US measures are approximate; exact Metric amounts remain available.

This Galician-style pie encloses a moist tuna and vegetable filling between two sheets of yeast dough. The main challenge is balancing a tender filling with a fully baked bottom crust. Softening the vegetables, reducing their loose liquid and cooling them before assembly all help. Start the dough first so its rise can overlap with the filling preparation, then give yourself an unhurried interval for rolling and sealing.

The recipe at a glance

Tuna and pepper Galician-style pie makes 6 servings, with 3 hr 10 min estimated total time. View the standalone recipe page.

Let the dough become puffy before rolling

Stir the active dry yeast and sugar into comfortably warm water, then wait for signs of activity before mixing the dough. Hot water is not a shortcut to a faster rise. Knead until the dough becomes smoother and more elastic, cover it and allow the scheduled rise. Look for a puffy mass that has roughly doubled rather than relying only on the clock. A cool kitchen may take longer. Keep the dough covered while the filling finishes so the exposed surface does not form a dry skin.

Reduce the vegetables before adding tuna

Thinly sliced onion and pepper soften more evenly than large pieces. Cook them gently in the measured oil, then add the tomatoes and seasoning. The filling should remain juicy, but a spoon drawn across the pan should not immediately fill with a puddle of thin liquid. Fold in the drained tuna after the vegetables have cooked down. Break apart large clumps without grinding the fish into a paste. Spread everything in a shallow dish to cool; hot filling makes the lower dough sticky and harder to transfer or seal.

Roll between parchment and keep a clear border

Divide the risen dough and roll the two sheets to similar thickness, making the bottom slightly larger. Parchment lets you roll without adding flour and helps move the broad sheet onto the tray. If the dough springs back strongly, cover it and pause briefly before continuing. Spread the cooled filling evenly rather than leaving a tall mound in the center. Keep the border clean: wet vegetables or oil trapped between the dough edges can prevent a firm seal and allow juices to escape during baking.

Close the edges and give steam an exit

Lay the upper sheet over the filling without pulling it tight. Fold the lower border up against it and pinch continuously around the perimeter. Decorative crimping is optional, but a closed seam is useful. Cut the short vents through the top layer so steam has a planned route out. Brush with the measured finishing oil and bake on a roomy metal sheet. Check the underside as well as the surface; a browned top does not guarantee that a thick bottom layer has finished cooking.

Rest before cutting clean portions

Confirm that the filling center reaches 165°F and that the crust is cooked through. Let the pie rest for fifteen minutes before using a sharp knife to divide it. That pause reduces the rush of hot juices from the first cut and helps the filling stay between the crusts. Use a broad spatula to lift each portion. Refrigerate leftovers within two hours and use within three to four days. Reheat to 165°F; an oven helps recover some crust texture, while a microwave tends to soften it.

Common questions

Why is the bottom crust damp?

The filling may have been too wet or too hot at assembly, or the lower dough may be thicker than the top. Reduce loose vegetable liquid, cool the filling and roll both sheets evenly before baking.

Can I use oil-packed tuna?

The written recipe uses drained water-packed tuna plus separately measured olive oil. Oil-packed fish changes the fat and moisture balance. Choose the specified canned tuna for the intended filling and recipe quantities.