"Pasta > hoagie...."
INGREDIENTS
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Kosher salt
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3/4 lb. medium pasta shells
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3 tbsp. extra-virgin olive oil, divided
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1 lb. sweet or spicy Italian sausage, casings removed
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3 medium red, yellow, or orange bell peppers, stemmed, seeded, ribs removed, finely chopped (about 3 c.)
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1 medium yellow onion, chopped (about 1 1/2 c.)
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4 cloves garlic, finely chopped
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1/4 tsp. crushed red pepper flakes
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6 oz. cream cheese, cubed
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1/2 c. heavy cream
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1/4 c. finely grated Parmesan, plus more for serving
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5 oz. baby spinach leaves (about 5 packed c.)