To make the fries: Preheat oven to 400ºF. Cut potatoes into long wedges. Spread them in a single layer on a baking sheet (I cover my baking sheet with an aluminum foil for easy clean up). Spray with non stick cooking spray and add the herbs, salt and pepper. Toss lightly with your fingers and bake for about 30 minutes, or until the potatoes are crispy tender. Don’t forget to stir them once in between for uniform browning.
Mean while make the cheese sauce. Melt butter in a saucepan, whisk in the flour and cook for 2 minutes or until the flour loses the raw smell.
Add tomato paste and mix well to incorporate into the roux. Slowly whisk in the milk, making sure there are no lumps formed in the sauce.
Bring the milk to a gentle simmer, add salt and pepper to taste and stir in the cheese. Let the cheese melt, remove and keep aside.
When the fries are ready, liberally douse with cheese sauce and serve hot.