2. Heat 1/2 teaspoon oil in a large nonstick ovenproof skillet over medium heat. Add garlic and cook one minute. Stir in spinach and cook until spinach wilts, about 2 minutes. Remove spinach to plate.
3. Add remaining 1/2 teaspoon of oil to skillet. Spread 1 teaspoon mustard onto each bread slice (one side only) and place bread, mustard side up, in skillet. Cook until bread is lightly browned on the bottom, about 1-2 minutes. Remove skillet from heat and divide spinach mixture between bread slices. Pile ham onto bread and top with thinly sliced tomato and cheddar cheese. Place skillet under broiler, about 4-6 inches from heat source, and broil until cheese melts and begins to brown, about 1 minute. Serve immediately. Yield: 2 servings