Toast the bread Lightly drizzle the bread with 1 teaspoon of the olive oil and toast until golden and crisp.
Make the whipped feta Add feta and Greek yogurt to a blender or food processor. Blend until smooth and creamy. Add a garlic clove if desired.
Build the toast Spread the whipped feta generously over each slice of toasted bread.
Add the tomatoes Quarter the cherry tomatoes and arrange them over the whipped feta.
Add the pesto Spoon 3–4 small dollops of pesto over each toast.
Finish with toppings Sprinkle with the mixed seeds and sesame seeds. Drizzle with the remaining 1 teaspoon of olive oil and finish with thick balsamic glaze.
Serve immediately while the toast is still crisp.