Biscuits Gravy Hashbrown Casserole

Sunday mornings in my house smell like butter and Saturday football folded into one glorious mess — warm, pillowy biscuits, sausage sizzling, and that cheesy, velvety gravy that makes people forgive each other for leaving dishes in the sink. I call this my Biscuits Gravy Hashbrown Casserole my “stay-in-your-jammies” brunch dish because it feels like a hug delivered hot from the oven. The top goes golden and flaky, the inside stays creamy and potato-y, and the sausage gravy sneaks into every delicious nook. If you want a crowd-pleaser that doubles as comfort food and an excuse to nap afterward, you’ve found it.

Quick Facts

  • Yield: Serves 6
  • Prep Time: 20 minutes
  • Cook Time: 40 minutes
  • Total Time: 60 minutes

Why This Recipe is Awesome

This casserole hits all the best parts of breakfast: crispy edges, gooey cheese, creamy gravy, and flaky biscuit tops. It tastes like the diner brought a casserole to your kitchen table. It’s forgiving, crowd-friendly, and surprisingly simple — it’s so easy even your oven can’t mess it up. Who doesn’t love a dish that makes the house smell like Sunday and feeds a small army?

Ingredients

For the Main Dish:

  • 30 oz frozen shredded hashbrowns, thawed and squeezed dry
  • 1 lb breakfast sausage (mild or spicy, your call)
  • 1 small yellow onion, finely diced (about 1 cup)
  • 2 cups shredded sharp cheddar cheese, divided
  • 2 large eggs
  • 3/4 cup sour cream (or plain Greek yogurt)
  • 1/2 cup milk
  • 1/2 tsp kosher salt
  • 1/4 tsp black pepper
  • 1 tbsp chopped fresh parsley (optional, for color)
  • 8 refrigerated biscuits (like the 8-count can), halved or torn into pieces

For the Sausage Gravy:

  • 1/4 cup sausage drippings + 2 tbsp butter (or just 3 tbsp butter if you drain drippings)
  • 1/4 cup all-purpose flour
  • 3 cups milk, warmed slightly
  • 1/4 tsp black pepper, plus salt to taste
  • Optional pinch of cayenne or smoked paprika for warmth

How I Make It

Step 1:

Preheat the oven to 375°F and grease a 9×13-inch baking dish. Brown the 1 lb sausage in a skillet over medium-high heat, breaking it into small pieces. Toss in the diced onion about halfway through so it softens and turns translucent. You’ll hear that delicious sizzle and smell the pork start to caramelize — my favorite kitchen soundtrack.

Step 2:

Transfer most of the cooked sausage to a bowl, leaving about 1/4 cup of drippings in the pan (or use 3 tbsp butter if you drained it). Sprinkle in the 1/4 cup flour and stir over medium heat until it smells nutty and turns a light golden, about 1–2 minutes. Slowly whisk in the 3 cups milk until the mixture thickens into gravy. Season with 1/4 tsp black pepper and a pinch of cayenne if you like a little kick.

Step 3:

In a large bowl, combine the thawed hashbrowns, 2 eggs, 3/4 cup sour cream, 1/2 cup milk, 1 cup shredded cheddar (reserve the rest), 1/2 tsp salt, and the cooked sausage (save a few pieces for the top if you want). Stir until everything looks evenly coated — the mixture should look creamy and slightly glossy. If it feels dry, add a splash more milk.

Step 4:

Spread the hashbrown mixture into the prepared pan, smoothing the top. Pour the warm sausage gravy evenly over the potatoes so it sinks into the layers. Scatter any reserved sausage pieces on top, then tuck pieces of the halved biscuits over the surface — they can touch; they’ll puff and join into a golden quilt. Sprinkle the remaining 1 cup cheddar over everything and brush biscuit tops with a little melted butter for extra browning.

Step 5:

Bake at 375°F for 30–35 minutes until the biscuits turn golden, the cheese bubbles, and sneaky little gravy bubbles appear at the edges. Let the casserole rest 5 minutes so it firms up for easier scooping. Garnish with fresh parsley and serve while it steams and smells like Sunday morning.

Pro Tips

  • For crispier edges, use a metal baking dish — it conducts heat better than glass.
  • Don’t overwork the hashbrown mixture; stir until combined, then stop. Overmixing makes it gummy.
  • If your gravy thickens too much while resting, whisk in a splash of milk to loosen it right before pouring.
  • Make ahead: assemble and refrigerate (unbaked) overnight. Add 5–10 minutes to the bake time if straight from the fridge.

Common Mistakes to Avoid

  • Skipping preheating: Classic rookie move. It changes texture and bake time.
  • Overmixing: Leads to dense or chewy results. Mix until just combined.
  • Guessing cook time: Always use visual cues or a timer, not just vibes.
  • Overcrowding pans: Give your food some breathing room to crisp properly.

Alternatives & Substitutions

  • Swap sausage for cooked breakfast turkey or crumbled tofu for a lighter or vegetarian option (season tofu well with smoked paprika and soy).
  • Use plain Greek yogurt instead of sour cream for tang with fewer calories — texture stays creamy.
  • For gluten-free: use a gluten-free flour blend for the gravy and gluten-free refrigerated biscuits.
  • To cut dairy: make a dairy-free gravy with olive oil, GF flour, and unsweetened almond milk; use dairy-free cheese and biscuits.

Variations & Tips

  • Spicy: Add diced jalapeños to the hashbrowns and use spicy sausage.
  • K id-friendly: Leave out cayenne and use mild sausage; top with extra cheese.
  • Vegetarian: Replace sausage with seasoned mushrooms and bell peppers for a meaty texture.
  • Herby: Fold in chopped chives and thyme into the potato mix for bright freshness.
  • Potato swap: Use diced frozen potatoes instead of shredded for chunkier texture.
  • Creative twist: Stir in a spoonful of whole-grain mustard into the gravy for a tangy surprise.

FAQ (Frequently Asked Questions)

Can I make this ahead of time?
Yes! Assemble the casserole, cover, and refrigerate up to 24 hours. Bring to room temperature for 20 minutes before baking and add 5–10 minutes to the bake time.
Can I double the recipe?
Sure thing. Use two 9×13 pans or one larger pan; if you use a deeper dish, increase bake time by 10–15 minutes and watch for golden biscuits.
Can I substitute butter with oil?
Technically yes, but you’ll miss that buttery magic. Use ¾ the amount of oil and expect slightly less browning on the biscuits.
How do I know it’s done?
Look for biscuits that turn golden-brown, cheese that bubbles, and gravy bubbling at the edges. A knife inserted into the center should come out warm and the potato layer should feel set, not liquidy.
What if I don’t have ingredient X?
Out of sour cream? Use plain yogurt. No shredded cheese? Slice cheddar thinly or use a mix of mozzarella and a sharper cheese. No biscuits? Drop spoonfuls of biscuit dough or top with a flaky puff pastry sheet.

How I Like to Serve It

I serve this straight from the oven with a big green salad for contrast and a pot of strong coffee. It makes a killer brunch for friends or a lazy family breakfast — pair with orange juice or a light beer if you’re feeling cheeky. It fits cold mornings, slow Sundays, and potlucks where people hoard the corner pieces.

Notes

  • Store leftovers covered in the fridge for up to 3 days. Reheat individual portions in the oven at 350°F for about 15–20 minutes until hot.
  • If you include meat, ensure it reached 165°F while cooking (sausage browns to a safe temp as it cooks). Use a probe thermometer for precision.

Final Thoughts

Closing: Now go impress someone — or just yourself — with a warm, cheesy, biscuit-topped masterpiece. Trust me: you’ll get compliments and probably nap afterward.