"Bell peppers can be so much more than just forgotten dippers...."
INGREDIENTS
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1 lb. ground beef
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1/3 c. breadcrumbs
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1/4 c. chopped parsley
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1/4 c. grated Parmesan, plus more for garnish
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1 egg
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2 garlic cloves, minced
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1 tsp. kosher salt
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1/2 tsp. red pepper flakes
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2 tbsp. olive oil, divided
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1 (15-oz) jar marinara
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4 bell peppers, cored and halved