This cheesy garlic bread only takes 20 minutes to make and will feed a crowd of 16.
Preheat the oven to 400°. In a food processor, pulse the butter and garlic until blended, about 10 pulses. Add the cheese, artichoke hearts, spinach, and oregano and pulse until blended, about 5 pulses. Season the butter with salt and pepper.
Spread the butter over the cut sides of the bread. Bake until the butter melts and the bread is browned in spots, 8 to 10 minutes. Cut the bread crosswise into slices.
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