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["Preheat oven to 375F.", "Heat oil in large nonstick skillet over medium-high heat.", "Add onion; saute 15 minutes or until golden brown.", "Cut 2 bread slices into 1"" cubes; set aside.", "Drain tomatoes in a colander over bowl, reserving 1/2 cup liquid; discard remaining liquid.", "Place tomatoes in a medium bowl.", "Stir in basil, if using, thyme, Italian seasoning, pepper and garlic.", "Place 1/2 cup onion in the bottom of a 3-qt casserole dish coated with cooking spray.", "Arrange 2 bread slices, half of the remaining onion, half of the tomato mixture, half of the zucchini, and half of the cheese over onion in dish.", "Repeat layer; top with bread cubes.", "Pour 1/4 cup reserved tomato liquid & broth.", "over casserole; if it looks like too small an amount, add the other 1/4 cup of tomato liquid.", "Cover and bake for 30 minutes.", "Uncover casserole and bake an additional 25 minutes or until top begins to brown.", "Spoon 2 cups casserole into each of 4 shallow bowls; top each serving with 1 tablespoon Red-Pepper Aioli.", "MAKE RED-PEPPER AIOLI:.", "Drop garlic through food chute with food processor on.", "Process until finely minced.", "Add the remaining ingredients, and process until well-combined."]
