Open-Faced Tomato sandwich - Delicious Living

Ingredients

• 1 cup full-fat Greek yogurt
• 1 Tbsp lemon juice
• 1/2 tsp sea salt
• 1/4 cup finely chopped green onions (both white and green parts)
• 4 thick slices artisanal sourdough bread
• 4 medium heirloom tomatoes (sliced)
• 1 Tbsp extra-virgin olive oil
• lemon zest (for topping)
• Salt and freshly cracked black pepper (to taste)
• fresh basil leaves (optional)