1Heat oven to 350°F. Spray 8x4- inch loaf pan with cooking spray. In medium bowl, stir Bisquick mix and 3/4 cup cheese. Add milk, red pepper and 1 of the eggs; stir 2 minutes. Spoon into pan. Bake 50 minutes or until toothpick inserted in center comes out clean. Cool completely, at least 1 hour 30 minutes.
2In medium bowl, beat remaining 6 eggs and the whipping cream. In 10-inch nonstick skillet, melt butter over medium heat. Add egg mixture; cook, stirring occasionally, until almost set. Sprinkle with salt and black pepper; remove from heat.
3Heat closed contact grill 5 minutes. Cut loaf diagonally into 8 (1/2-inch) slices. Place 1 cheese slice on each of the 4 bread slices; spoon scrambled eggs on top. Top with another cheese slice. Top with remaining bread. Spray tops with cooking spray. Place sandwiches on grill. Close grill; cook 2 to 3 minutes or until bread is toasted and cheese is melted. Add spinach to each sandwich before serving. To serve, cut each sandwich in half.