Pierce each potato with a fork 3 to 4 times on each side. Wrap each potato in a damp paper towel. Microwave at HIGH 8 minutes, turning after 4 minutes. Cool slightly.
Cut potatoes in half; scoop pulp into a bowl. Mash pulp.
Heat butter in a small saucepan over medium heat; cook 3 minutes or until browned. Stir butter, milk, and salt into potato pulp. Top with pecans.
Variation 1 Maple Bacon Price per serving: $85 Prepare master recipe through step Stir in 1 tablespoon softened butter, 2 tablespoons fat-free milk, and 4 teaspoons maple syrup. Top mashed sweet potato mixture with 1 1/4 ounces cooked and crumbled bacon (about 3 slices).