Prep: Preheat oven to 375°F (186°C). Grease a 9x13 inch (or similar) casserole dish.
Mix: In the microwave, soften the ½ cup unsalted butter for 15 seconds. In a large bowl stir together 1 15-oz can cream-style corn, 1 15-oz can corn, 1 cup sour cream, 2 eggs, 1 8.5 oz box corn muffin mix, and ½ tsp salt.
Bake: Transfer dough to prepared casserole dish, smoothing out the surface. Bake for 30 to 45 minutes, or until the top is a bit golden brown and the center no longer jiggles.
Serve: Let cool slightly, then cut into squares and serve warm.
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Notes
Storage: Once cooked, this cornbread casserole stays good in an airtight container in the fridge for up to a week. Leftovers can also be frozen!Reheating: Our favorite way of reheating has been to air fry individual pieces until crispy all around. So yummy!