Following these steps ensures the sauce develops a deep, rich profile without overcooking the delicate seafood.
Combine the crushed tomatoes, chicken broth, avocado oil, minced garlic, salt, seasoned salt, black pepper, red pepper flakes, dried basil, and dried oregano in a 4-quart slow cooker.
Stir the mixture thoroughly to ensure the spices and oils are evenly distributed throughout the tomato base.
Secure the lid on the slow cooker and set the temperature to the low heat setting for a duration of 4. 0 to 5. 0 hours.
Open the lid once the time has elapsed and gently fold in the 1. 0 lb (453. 6g) of cooked shrimps and the 2. 0 tbsp (7. 6g / 0.21 oz) of minced parsley.
Increase the slow cooker setting to high heat and cook for an additional 10. 0 minutes to allow the shrimps to heat through and absorb the flavors of the marinara.
Portion the dish into five servings and garnish each with the grated Parmesan cheese before serving immediately.