There’s something sacred about the third Monday in January. When I was growing up in coastal Georgia, my grandmother called it “King’s Day,” and she treated it with the same reverence as Thanksgiving. The parades would wind through Savannah’s oak-lined streets, brass bands played We Shall Overcome, and the whole house smelled like butter, onions, and stone-ground grits slowly bubbling on the stove. By 9 a.m. our long farm table was crowded with neighbors, cousins, and anyone who needed a place to sit, sip coffee, and remember. The centerpiece was always her breakfast grits casserole—a golden, cheesy, ham-studded cloud that could feed a dozen hungry souls and still leave enough for late-comers. Today I make the same dish in my Chicago apartment, 700 miles north and a lifetime away, but one forkful still transports me to her sun-washed kitchen with the creaky heart-pine floors. If you’re looking for a make-ahead breakfast that honors community, comfort, and the enduring spirit of service, this is it.

Why This Recipe Works

Stone-ground grits give a nutty, rustic texture that instant grits can’t touch.
Triple-cheese blend (white cheddar, Gruyère, and a whisper of Parmesan) melts into silky pockets without separating.
Smoked ham steak seared first for caramelized edges, then folded throughout so every bite has umami depth.
Make-ahead magic: assemble the night before, refrigerate, then bake straight from cold while everyone lingers over coffee.
Egg-to-grits ratio is engineered for clean slices—no runny center, no dry edges.
Feeds 12 generously or 16 as part of a buffet, perfect for potlucks and prayer breakfasts.
Freezer-friendly squares reheat like a dream for busy weekday mornings.

Ingredients You'll Need

White cheddar, stone-ground grits, ham steak, green onions, and eggs arranged on a wooden board

Great grits casserole starts with great grits. Look for whole-grain, stone-ground white or yellow grits sold in the refrigerated section—Anson Mills, Geechie Boy, or Delta Grind are gold standards. They still contain the germ, so they spoil faster but taste like fresh corn on the cob. Avoid “quick” or “instant”; they lack flavor and yield gummy texture. If you can only find coarse polenta, that works in a pinch—just know it will be slightly toothier.

Ham: Buy a 1-pound smoked ham steak, preferably bone-in for maximum flavor. Black Forest or Virginia-style both shine; just skip anything labeled “honey” or “maple” which can burn under high heat. Dice half the ham into ¼-inch cubes for folding into the casserole; hand-shred the rest into bite-size ribbons that will crown the top and crisp like bacon in the oven.

Cheese trio: Sharp white cheddar brings tang, Gruyère supplies nutty meltability, and a dusting of aged Parmesan finishes with crystalline crunch. Pre-shredded cheese is coated in cellulose that can seize when baked, so buy blocks and grate yourself; it takes three extra minutes and saves infinite texture disappointment.

Dairy balance: Whole milk keeps the casserole creamy without heaviness; a splash of buttermilk adds subtle brightness. If you only have 2 % milk, swap two tablespoons for heavy cream to restore silkiness. Dairy-free? Unsweetened oat milk plus 2 tablespoons nutritional yeast approximates the flavor, though the texture will be lighter.

Eggs: Six large eggs set the custard. For an extra-fluffy lift, separate the whites, beat to soft peaks, and fold in just before baking. (If you’re making ahead, reserve this step for the morning of.)

Aromatics & seasoning: A small onion, two ribs of celery, and one green bell pepper form the classic Southern “holy trinity.” Sauté until translucent—NOT browned—to keep the flavor gentle. Worcestershire, hot sauce, and a pinch of nutmeg deepen complexity without announcing themselves.

Garnish: Sliced green onions, parsley, and a final crack of black pepper add color and freshness. For MLK Day, we sometimes stencil a small dove or peace symbol on top using smoked paprika; the kids love the edible art lesson.

How to Make MLK Day Breakfast Grits Casserole with Cheese and Ham

Prep your pan and oven

Butter a 13×9-inch ceramic or glass baking dish, then line with parchment leaving two-inch “handles” for easy removal later. Preheat oven to 375 °F (190 °C) with rack in center. If baking next morning from cold, you’ll drop temperature to 350 °F—more on that below.

Sear the ham

Pat ham steak dry; season lightly with cracked pepper. Heat 1 teaspoon oil in a heavy skillet over medium-high. Sear ham 2 minutes per side until edges caramelize. Transfer to plate; when cool, dice half and shred half.

Cook the grits

Bring 4 cups water, 2 cups whole milk, and 1 tablespoon kosher salt to a gentle boil. Whisk in 1½ cups stone-ground grits; reduce heat to low. Cook 25–30 minutes, whisking every 5 minutes, until thick and creamy. If they absorb liquid too quickly, splash in hot water ¼ cup at a time. Off heat, stir in 4 tablespoons butter until glossy.

Build the custard

While grits simmer, sauté trinity (½ cup each finely diced onion, celery, bell pepper) in 2 tablespoons butter until soft, 5 minutes. Stir into grits along with 1 teaspoon Worcestershire, ½ teaspoon hot sauce, and ¼ teaspoon freshly grated nutmeg. Taste; add salt if needed—it should be slightly over-salted since eggs and cheese will dilute.

Add eggs & cheese

Let grits cool 5 minutes (to prevent scrambling eggs). Beat 6 eggs with ½ cup buttermilk; temper by whisking in ½ cup warm grits, then fold mixture back into pot. Stir in 6 oz grated white cheddar and 4 oz grated Gruyère plus diced ham. Mixture will look slightly loose; that’s perfect.

Fill and top

Pour into prepared dish. Scatter shredded ham over surface; gently press so it adheres. Sprinkle remaining 2 oz cheddar and 1 oz Parmesan. Finish with paprika for color.

Bake now or chill

If serving immediately, bake 35–40 minutes until edges are puffed and center barely jiggles. For overnight method, cool completely, cover tightly with foil, refrigerate up to 24 hours. Next morning, set on counter 20 minutes, reduce oven to 350 °F, bake 45–50 minutes adding foil if top browns too quickly.

Rest and serve

Let casserole rest 10 minutes; this sets the custard for neat squares. Garnish with green onions and parsley. Serve warm alongside fresh fruit, collard greens, and hot coffee.

Expert Tips

Water-to-grits ratio

Stone-ground grits vary by brand. Keep a kettle of hot water nearby; if mixture thickens before fully tender, loosen with water ¼ cup at a time rather than cranking heat.

Cheese cold grate

Pop cheese blocks in freezer 10 minutes before grating; firmer texture shreds faster and reduces clumping.

Don’t over-bake

Center should jiggle like gelatin when you pull it; carry-over heat finishes cooking while resting.

Double-decker option

Recipe doubles perfectly in a deep half-steam pan for church suppers; increase bake time by 15–20 minutes and use an instant-read thermometer—center should hit 180 °F.

Breakfast-in-bed hack

Bake casserole in 12-cup muffin tin for 20 minutes; you’ll have portable grit cakes that reheat 30 seconds in microwave.

Egg-white lift

For extra fluff, whip 3 egg whites to soft peaks, fold in just before baking. Adds cloud-like height without altering flavor.

Variations to Try

Coastal shrimp: Replace ham with 1 pound peeled shrimp sautéed in butter with Old Bay; fold in and top with crispy pancetta bits.
Vegetarian greens: Swap ham for 2 cups sautéed kale, spinach, and roasted red peppers; use smoked gouda for depth.
Tex-Mex sunrise: Sub chorizo for ham, stir in roasted poblano, use pepper-jack cheese, serve with pico de gallo.
Low-country luxury: Add 1 cup lump crabmeat and ½ cup roasted corn kernels with old bay lemon zest topping.
Gluten-free & dairy-free: Use oat milk, vegan butter, and 1½ cups shredded vegan cheddar plus ¼ cup nutritional yeast.
Mini meal prep: Portion into 8-ounce ramekins, bake 18 minutes, cool, freeze; reheat 60 seconds microwave for grab-and-go breakfasts.

Storage Tips

Refrigerate: Cool completely, cut into squares, store in airtight container 4 days. Reheat single portions 45 seconds microwave (cover with damp paper towel) or 10 minutes 350 °F oven.

Freeze: Wrap individual squares in plastic wrap, then foil; freeze up to 2 months. Thaw overnight in fridge, reheat as above.

Make-ahead: Assemble through Step 6, cover tightly, refrigerate up to 24 hours. Add 10–15 minutes to bake time if starting cold.

Leftover love: Crumble cold squares into hot chicken broth for instant cheesy grits soup; top with poached egg and scallions.

Frequently Asked Questions

You can, but you’ll sacrifice flavor and texture. Instant grits absorb liquid differently; reduce liquid by 1 cup and bake 5–10 minutes less. Expect a denser, slightly pasty result.

Not as written. The hot sauce adds subtle warmth. For more kick, double the hot sauce or add ¼ teaspoon cayenne to the sautéed vegetables.

Yes. Bake in an 8×8-inch dish for 25–30 minutes. All ingredient ratios remain the same; simply use half quantities.

Substitute smoked turkey or sautéed mushrooms with ½ teaspoon smoked paprika for similar depth. Vegan? See the vegan variation above.

Over-baking or too-high oven. Next time pull when center still jiggles and cool 10 minutes; steam finishes setting the custard.

Bake in a disposable foil pan, cool 15 minutes, cover with foil, then wrap in a thick towel and place in an insulated cooler. It will stay hot 45 minutes; reheat 10 minutes in host’s oven if needed.

MLK Day Breakfast Grits Casserole with Cheese and Ham

Why This Recipe Works

Ingredients You'll Need