Keto Tuna Salad Cups

Name: Keto Tuna Salad Cups
Cook time: 20 min
Total time: 20 min
Cuisine: American
Ingredients: 4 large eggs; 4 strips bacon; 1/3 cup olive or avocado oil mayonnaise; 2 tablespoons sour cream; 1/4 teaspoon lemon zest plus 1 tablespoon lemon juice; 1 stalk celery, thinly sliced; Two 5-ounce cans tuna packed in olive oil, 2 tablespoons of the oil reserved and the rest drained; 2 scallions, sliced; Kosher salt and freshly ground black pepper; 1 medium tomato, halved and cut into 8 slices; 16 leaves Bibb lettuce