5 lbs large raw shrimp (peeled, deveined, tails on)
4 slices thick-cut smoky bacon (diced)
1 cup stone-ground coarse yellow or white grits
4 cups whole milk and shrimp broth (combined)
5 cups sharp white cheddar cheese (grated)
4 tbsp unsalted butter
1/2 medium green bell pepper + 1/2 yellow onion, diced
3 cloves garlic, minced
1 tbsp fresh lemon juice
1 tsp Cajun or Old Bay seasoning
Sliced scallions for garnish