Easy Cheesy Stuffed Shells with Meat

Ingredients

• 1 tbsp olive oil
• 2 tsp salt ((divided))
• 1 12 ounce package of jumbo shells
• 1¼ lbs. ground beef ((lean))
• 1 small onion ((diced))
• 2 cloves garlic ((minced))
• 1 tsp black pepper
• 2 tsp paprika
• nonstick cooking spray
• 1½ tsp dried mint
• 3 tbsp parmesan cheese
• 6 ounces canned tomato paste
• 2½ cups water
• ½ tsp salt
• ¼ tsp black pepper
• ¼ tsp citric acid
• 1 cup shredded mozzarella cheese