It’s been just over two years since Texas-based fast-food chain Whataburger made a return to Colorado and opened an outpost in Colorado Springs. Whataburger was founded in the 1950s and had several locations in the state until the 1970s. Now it has six locations in the Springs, but its seventh, set to open at 11 a.m. on Tuesday, April 23, brings it a little closer to Denver: The newest Whataburger will be located at 17889 Fat Tire Drive in Monument…