Ingredients: |
| 1 red bell pepper - roasted, peeled, seeded and small diced (Learn How) |
| 1 small onion (red) - peeled and small diced (Learn How) |
| 1 celery stalk - small diced and leaves minced (Learn How) |
| 1/2 fennel bulb - small diced and fronds minced (Learn How) |
| 2 tablespoon(s) parsley (flat leaf) - finely chopped |
| 1/4 cup(s) red wine vinegar |
| 1 tablespoon(s) Dijon mustard |
| 3/4 cup(s) olive oil |
| 1/2 teaspoon(s) red chile flakes - ground |
| 1 pinch salt and pepper - to taste |
| 4 tuna - drained well |
| 1 baguette - sliced into four open-faced pieces |
| 4 slices Muenster cheese - (provolone, white cheddar, havarti) |