If you’re looking for a warm, cheesy, flavor-packed dinner that’s ready in under an hour with minimal effort — look no further. This French Onion Chicken Bubble Up is the ultimate comfort food mashup: tender chicken, savory French onion soup flavors, melty Swiss cheese, and golden, flaky biscuit topping all baked into one irresistible casserole.
Inspired by the classic taste of French onion soup and the convenience of canned biscuits, this dish is a weeknight hero. Thanks to its simple ingredients and foolproof assembly, it’s perfect for busy families, beginner cooks, or anyone craving something hearty without the hassle.
Just pop it in the oven, let it bubble up into golden perfection, and get ready for seconds!
Ingredients
- 2 tablespoons butter
- 1 small onion , thinly sliced
- 2 cloves garlic , minced
- 1 lb boneless, skinless chicken breasts , cut into 1-inch cubes
- 1 (10.5 oz) can condensed French onion soup (not diluted)
- ½ cup sour cream
- 1 cup cooked mushrooms (optional, but recommended for extra depth)
- 1 cup shredded Swiss cheese (or Gruyère for a gourmet twist)
- 1 (16.3 oz) can refrigerated jumbo biscuits (8-count, such as Pillsbury Grands!)
- ½ cup grated Parmesan cheese
- 1 teaspoon dried thyme
- Salt and pepper , to taste
- Fresh parsley , chopped (for garnish)
Instructions
Step 1: Preheat & Prep
- Preheat your oven to 375°F (190°C) .
- Lightly grease a 9×13-inch baking dish with non-stick spray or butter.
Step 2: Sauté the Aromatics
- In a large skillet over medium heat, melt the butter .
- Add the sliced onion and cook for 4–5 minutes , until softened and starting to caramelize.
- Stir in the garlic and cook for 30 seconds until fragrant.
- Add the chicken cubes , season with salt and pepper, and cook for 5–6 minutes , stirring occasionally, until chicken is lightly browned and mostly cooked through.
🔪 Pro Tip: Cutting chicken into uniform pieces ensures even cooking.
Step 3: Build the Filling
- Reduce heat to low.
- Stir in the canned French onion soup , sour cream , and cooked mushrooms (if using) .
- Add ½ cup of the Swiss cheese and stir until well combined and creamy.
- Remove from heat and set aside.
Step 4: Assemble the Casserole
- Pour the chicken mixture into the prepared baking dish and spread evenly.
- Arrange the refrigerated biscuits on top in a single layer, slightly overlapping like flower petals to cover the filling completely.
- In a small bowl, mix Parmesan cheese , thyme , and a pinch of black pepper. Sprinkle evenly over the biscuits.
- Top each biscuit with a small sprinkle of the remaining Swiss cheese for maximum gooeyness.
Step 5: Bake Until Golden & Bubbly
- Place the dish in the preheated oven and bake for 25–30 minutes , or until:
- The biscuits are golden brown
- The filling is hot and bubbling around the edges
- The chicken is fully cooked (internal temperature of 165°F)
Step 6: Finish & Serve
- Remove from oven and let cool for 5 minutes.
- Garnish generously with chopped fresh parsley .
- Slice or spoon directly from the pan and serve warm.
Serving Suggestions
- Pair with a simple green salad or steamed vegetables for balance.
- Great with a glass of light white wine or sparkling water with lemon.
- Leftovers reheat beautifully in the oven or microwave — just add a splash of broth if needed.
Why This Recipe Works So Well
✅ Fast & Easy: Only about 15 minutes of prep — perfect for tired evenings.
✅ Pantry-Friendly: Uses convenient staples like canned soup and refrigerated biscuits.
✅ Big Flavor, Little Effort: The French onion soup base delivers rich, savory depth instantly.
✅ Crowd-Pleasing Comfort: Cheesy, meaty, and topped with soft, golden biscuits — who could resist?
Customization Ideas
- Vegetarian? Swap chicken for sautéed mushrooms, lentils, or chickpeas.
- Lighter version: Use turkey breast, low-fat sour cream, and reduced-sodium soup.
- Gluten-free: Use gluten-free biscuits or a homemade biscuit alternative.
- Extra crunch: Sprinkle panko breadcrumbs mixed with melted butter over the top before baking.
Final Thoughts
The French Onion Chicken Bubble Up is more than just a casserole — it’s a celebration of flavor, ease, and cozy satisfaction. With its melty cheese, tender chicken, and golden biscuit crown, it brings restaurant-quality comfort straight to your dinner table — no reservations needed.
So next time you’re staring into the fridge wondering “What’s for dinner?” — reach for those canned biscuits and make this showstopper. Your family will think you spent hours in the kitchen… when really, you just baked brilliance.
Warm, bubbly, and downright delicious — this one’s a keeper.
