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1
Preheat oven to 375 degrees F.
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2
Make the Garlic Sauce: In a medium bowl, microwave the butter on high until melted, about 3 minutes.
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3
Whisk in the garlic.
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4
In another medium bowl, whisk together the pizza sauce, tomato juice, garlic, and salt.
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5
Set aside.
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6
Slice off part of the rounded side of each bread half to create a flat surface.
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7
(This will allow the bread to lay flat in the oven.)
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8
Cut the loaves open, lengthwise, keeping them intact like a book.
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9
Cut each loaf in half, crosswise, to make 4 sections.
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10
Arrange the bread on a baking sheet.
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11
Using a brush, slather the bread with the garlic sauce.
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12
Using a ladle or spoon, cover the bread with tomato sauce (be sure to cover to the edges to prevent burning).
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13
Spread about 1/4 of the mushrooms and mozzarella, and 1/2 cup (about 20 slices) of pepperoni across each loaf section and sprinkle with oregano.
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14
Bake until all the cheese is melted and the bread is golden brown, about 8 to10 minutes.
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15
Serve immediately.
