Mexican Beef Stew over Chipotle Sweet Potato Mashers

Ingredients

• 2 pounds beef Stew Meat, cut into 1 to 1-1/2-inch pieces
• 1/3 cup flour
• 1 tablespoon unsweetened cocoa powder
• 1 tablespoon ground ancho chile pepper
• 1 to 2 tablespoons butter
• 1/2 teaspoon salt
• 1/4 teaspoon ground black pepper
• 1-1/2 cups frozen mixed red, yellow and green bell pepper blend
• 1 can (14-1/2 ounces) diced canned tomatoes, undrained
• 1-1/2 cups ready-to-serve beef broth
• 1 teaspoon minced chipotle peppers in adobo sauce
• 1 teaspoon adobo sauce from chipotle peppers
• 2 pounds sweet potatoes, peeled, cut into 1-1/2 to 2-inch pieces
• 1 to 2 tablespoons butter (optional)
• 1/2 teaspoon ancho chile pepper