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heirloom tomato toast with lemon herb sardines on crispy sourdough

Heirloom Tomato Toast with Lemon Herb Sardines

A crispy, golden sourdough toast dipped in egg and Parmesan, topped with a bright lemon herb sardine mixture and layered heirloom tomatoes. This heirloom tomato toast with lemon herb sardines is fresh, savory, and perfect for a quick gourmet-style meal.
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Prep Time 10 minutes
Cook Time 5 minutes
Total Time 15 minutes
Servings: 2
Course: Appetizer, Breakfast, lunch
Cuisine: Mediterranean
Ingredients Method Notes

Ingredients
  

For the Toast
  • 2 slices sourdough bread
  • 1 large egg
  • ¼ cup finely grated Parmesan
  • Freshly cracked black pepper
  • 2 tbsp olive oil for frying
For the Sardine Mixture
  • 1 tin sardines in olive oil, lightly drained, 4.38 oz
  • 2 tbsp finely chopped parsley
  • 2 tsp lemon juice
  • 1-2 tsp olive oil
  • 1 tsp capers
For Topping
  • 1 heirloom tomato cut in half, then thinly sliced
  • Red pepper flakes
  • Flaky salt

Method
 

  1. In a small bowl, gently mash the sardines with a fork, keeping some texture. Add parsley, lemon juice, capers, and olive oil. Mix to combine. Taste and adjust with more lemon juice or olive oil if needed.
  2. In a shallow bowl, whisk together the egg, finely grated Parmesan, and black pepper until smooth.
  3. Heat olive oil in a skillet over medium heat.
  4. Dip each slice of sourdough into the egg mixture, coating both sides without oversoaking.
  5. Transfer to the pan and cook for 2–3 minutes per side, until golden brown with crisp, cheesy edges.
  6. Spoon the sardine mixture evenly over the warm toast.
  7. Layer the heirloom tomato slices on top, folding or arranging for height and texture.
  8. Sprinkle with flaky salt and red pepper flakes. Serve immediately.

Notes

  • Use high-quality sardines in olive oil for the best flavor.
  • Heirloom tomatoes work best here because of their sweetness and texture.
  • Do not oversoak the bread - this keeps the toast crisp.
  • This heirloom tomato toast with lemon herb sardines is best served immediately while warm.

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