Colorado’s Front Range is the birthplace of a restaurant revolution, but it’s not the sort of fine dining you might be thinking of. In Colorado, fast-casual is king. The Denver, Boulder and Fort Collins metro areas boast the highest numbers of fast-casuals per person in the country. The state is home to both industry pioneers like Chipotle and Noodles & Company, and buzzed-about newcomers like the recently renamed Modern Market and Smashburger. The restaurants borrow ideas from both fast food and upscale sit-down restaurants, catering to customers who want food fast, inexpensive and customized. Their success -- having grown more quickly than either fast food chains or full service restaurants in recent years -- is part demographics and part economics.