La Belle Vie French  style restaurant, Located at: 312 S. Main Street Stillwater, MINNESOTA   Phone Number 651-430-3545           Hours of Business: Mon-Fri 11:30-2, 5-9 p.m.           Average Price: $20                   La Belle Vie have adeptly designed a small French-Mediterranean menu with Midwestern appeal. The offerings will change periodically, and a new, lighter summer menu, a little more Spanish in influence, begins this month. The vast range of spices, sauces and cooking styles encompassed by the Mediterranean region gives the chefs great flexibility to experiment.