In a large skillet over medium heat, sauté bacon until brown and crisp this may take about 3-5 minutes.Remove bacon from skillet and transfer to a plate. Some bacon drippings will be left in the pan (about 3 tablespoons).Add about a tablespoon of oil or butter to the pan, followed by shrimp. Then season with Cajun salt, and sauté shrimp for about 3-4 minutes. Set aside.Then add garlic, paprika, bell pepper, parsley, and green onions to the pan. Add about ¼ cup of broth or more – adjust to preference. Continue cooking for another 3 minutes.Add shrimp towards the last minute with lemon juice if desired, and adjust to taste. Throw in the crisp bacon, and adjust seasonings with salt and pepper.Remove the mix from the heat and serve over your grits.