Preheat oven to 450o and place oven rack in the top third of oven. Place naan bread on a baking sheet and heat in the oven for 2 minutes, until bread is warm and soft.
- Meanwhile, place ricotta cheese, lemon zest, olive oil, salt and pepper in a small bowl and stir until combined. Remove naan bread from oven and spread half of ricotta mixture on each bread.
- Press 2 slices of speck into ricotta mixture on each bread. Divide asparagus and place half on each bread, then sprinkle with mozzarella cheese.
- Break 2 eggs onto each bread near the center and immediately return baking tray with breads to hot oven. Bake for 10-15 minutes, until egg whites are set but yolks are still slightly runny.
- Cut each breakfast pizza in half and serve hot, drizzled with harissa, to taste