Marmitako

Directions

1. 1
   Preheat the oven to 400*FIn a medium sized skillet, heat 2 TBSP of the oilover med. high heat.
2. 2
   Add the onion and cook, stirring occasionally, for 3 - 4 minutesuntil soft.
3. 3
   Add the garlic and tomatoes and cook, stirring occasionally, for about 10 minutes, until the tomatoes are soft. Stir in the capers.Meanwhile, arrange the potatoe slices in the bottom of a 12 1/4 inch cazuela or other shallow heatproof dish, overlapping the slices.
4. 4
   Spread the tomato and onion mixture over the potatoes.
5. 5
   Pour over the broth.
6. 6
   Place cazuela in the oven and bake for about 20 minutes, until the potatoes are almost cooked.
7. 7
   Sprinkle the tuna slices lightly with the salt and pepper to taste.
8. 8
   Place on top of the potatoesand bake for 5 - 8 minutes, until the tuna is opaque throughout. Adjust the seasoning if necessary.
9. 9
   Serve hot or at room temperature.
10. 10
    Serves 4