"The kids will love the melted cheese "erupting" from the top of these meatballs...."
INGREDIENTS
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1lb. lean ground beef
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6 RITZ Crackers, finely crushed (about 1/4 cup)
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1/4cup KRAFT Grated Parmesan Cheese
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3/4cup spaghetti sauce, divided
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12 KRAFT Cheddar Cheese Cubes
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4 hot dog buns