"Eat it tonight, or freeze it for later. This cheesy casserole is still awesome months after you make it. —Taste of Home Test Kitchen..."
INGREDIENTS
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1 package (16 ounces) uncooked spiral pasta
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4 teaspoons olive oil, divided
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2 pounds boneless skinless chicken breasts, cut into 3/4-inch cubes
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1/2 pound sliced fresh mushrooms
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4 garlic cloves, minced
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3 cans (10-3/4 ounces each) condensed cream of mushroom soup, undiluted
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1-1/2 cups chicken broth
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1-1/2 cups (6 ounces) shredded fontina cheese, divided
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4 teaspoons minced fresh oregano or 1-1/4 teaspoons dried oregano
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1/2 teaspoon pepper
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2 packages (6 ounces each) fresh baby spinach, coarsely chopped
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2 medium tomatoes, chopped