Jo Van Amburg, 58, Glendale, Calif. (mom of Jessie Van Amburg, All You editorial assistant) "This dish is great for using up little leftover bits in the fridge."
Preheat oven to 350°F. Grease a 9-by-13-inch baking dish. In a large skillet, warm 1 Tbsp. oil over medium heat. Sauté garlic until fragrant, about 1 minute. Add spinach; cook 1 to 2 minutes longer. Arrange mixture in dish.
Warm remaining oil in skillet; sauté onion, mushrooms and bell pepper until tender, about 8 minutes. Add to dish.
Cook bacon in skillet over medium heat, stirring, until crisp, about 5 minutes. Remove with slotted spoon and add to dish. Top with Parmesan.
In a large bowl, beat remaining ingredients with an electric mixer on medium until combined, about 1 minute. Pour over bacon mixture. Bake until center is set, about 35 minutes. Serve warm.