Start by frying together the onion and garlic in 1 tbsp olive oil till soft. Add in the sausage meat and cook down for 2 minutes, breaking up with the back of a spoon. Remove from the pan.  In a bowl or jug, whisk together the eggs, milk and season with salt and pepper to taste. Heat the remaining tbsp. olive oil in the frying pan and lay in half of the potatoes and half, half of the spinach and half of the egg mixture. Lay over half of the fried sausage mixture and half of the broken peppered ġbejniet. Repeat this process again using all the remaining ingredients and add in the torn basil leaves. Cook on the stove for 4 minutes on a medium heat then transfer to the oven and continue to brown the top under a hot grill. Serve either warm or cold dressed with rocket leaves and fresh herbs.