A creamy, cheesy casserole that doubles as a protein-packed weeknight lifesaver—this High Protein Alfredo Bake brings tender shredded chicken, broccoli, and lots of melty cheese together over your favorite pasta. It’s straightforward, family-friendly, and perfect when you want comfort food that keeps you full. If you want a quick protein boost on the side, try pairing this with No-Bake High Protein Granola Bars for an easy, protein-forward meal plan.
Why you’ll love this dish
This recipe answers the common weeknight question: how do I get something fast, comforting, and high in protein on the table? It’s pantry-friendly (you likely have Alfredo sauce and pasta on hand), uses cooked chicken so the assembly is fast, and it’s crowd-pleasing—melty mozzarella and a golden Parmesan crust sell themselves.
“A weeknight favorite at our house: hearty, fast, and the broccoli sneaks in veggies without complaints.” — a regular cook’s review
Perfect occasions: busy weeknights, potlucks, make-ahead Sunday dinners, or anytime you want a protein-forward comfort meal that reheats well.
How this recipe comes together
This bake is essentially four steps: cook pasta, combine with shredded chicken and sauce, add broccoli, then top with cheese and bake until golden. The chicken is already cooked (rotisserie or leftover roasted chicken works great), so the total hands-on time is mostly pasta boiling and mixing. Baking gives the dish a cohesive texture and a bubbly cheese top that’s irresistible. Expect about 10–15 minutes active prep and 20–25 minutes in the oven.
What you’ll need
- 8 oz pasta (your choice — penne, rigatoni, or shells hold sauce well)
- 2 cups cooked chicken breast, shredded (rotisserie chicken is an easy shortcut)
- 2 cups Alfredo sauce (store-bought or homemade)
- 1 cup broccoli florets (fresh or thawed frozen; see tips)
- 1 cup mozzarella cheese, shredded
- 1/2 cup grated Parmesan cheese
- Salt and pepper to taste
- Fresh parsley for garnish (optional)
Substitutions and notes:
- For extra protein, use chickpea or lentil-based pasta.
- Swap part-skim Alfredo to reduce calories, or use a lighter white sauce made with Greek yogurt for tang and protein.
- If you don’t like broccoli, substitute peas, spinach, or diced roasted red peppers.
Step-by-step instructions
- Preheat the oven to 350°F (175°C). Lightly grease a 9×9-inch (or similar) baking dish.
- Cook the pasta according to package instructions until just al dente (it will finish cooking in the oven). Drain and set aside.
- In a large bowl, combine the cooked pasta, shredded chicken, Alfredo sauce, and broccoli florets. Toss until everything is evenly coated.
- Season with salt and freshly cracked black pepper. Taste and adjust—Alfredo sauces can vary widely in salt.
- Transfer the mixture into the prepared baking dish and spread it into an even layer.
- Sprinkle the shredded mozzarella evenly over the top, then finish with the grated Parmesan.
- Bake for 20–25 minutes, or until the cheese is melted, bubbly, and lightly golden on top. If you want extra browning, broil for 1–2 minutes—watch closely.
- Remove from the oven, let rest for 5 minutes, garnish with chopped parsley if desired, and serve warm.
Best ways to enjoy it
Serve slices straight from the dish onto warm plates. Pair with:
- A crisp green salad dressed with lemon vinaigrette to cut the richness.
- Garlic bread or a baguette to mop up sauce.
- Roasted cherry tomatoes or sautéed green beans for extra color and freshness.
For a lighter plate, keep portions moderate and serve with a big side salad. For a protein-packed meal plan, include a high-protein snack or dessert from the list of the best 20 high-protein recipe ideas to round out your intake.
Storage and reheating tips
- Refrigerator: Store leftovers in an airtight container for 3–4 days. Cool to room temperature before refrigerating.
- Freezer: For longer storage, freeze in a freezer-safe container for up to 2–3 months. Thaw overnight in the fridge before reheating.
- Reheating (oven): Cover with foil and heat at 350°F until warmed through, about 15–20 minutes from refrigerated.
- Reheating (microwave): Microwave individual portions on medium-high in 1–2 minute bursts, stirring or rotating for even heat. Ensure internal temperature reaches 165°F for safety.
- Safety note: If you used homemade chicken, make sure it reached an internal temperature of 165°F when originally cooked.
Pro chef tips
- Avoid overcooking the pasta: cook it al dente because it will absorb sauce and soften in the oven.
- Shred chicken by hand or with two forks for better texture than chopping finely.
- Blanch broccoli for 1–2 minutes in boiling water, then plunge into ice water to keep it bright green and crisp-tender (especially if you prefer a fresher bite).
- If your Alfredo sauce is thick, thin it slightly with a splash of milk to help it coat pasta evenly.
- For a crunchy top, mix 1/4 cup panko with 1 tablespoon melted butter and sprinkle over cheese before baking.
- Use a thermometer: reheat to 165°F to ensure safe consumption.
Creative twists
- Tex-Mex Alfredo: Stir in 1/2 cup corn, 1/2 cup black beans, and top with pepper jack and cilantro. Serve with avocado slices.
- Low-carb swap: Replace pasta with cooked cauliflower florets or shirataki noodles for a lighter casserole.
- Vegetable-forward: Double the broccoli and add mushrooms and spinach for more veggies.
- Seafood version: Substitute cooked shrimp for chicken (add just before baking to avoid overcooking).
- Vegan option: Use a cashew-based Alfredo, dairy-free cheeses, and shredded jackfruit or tempeh for protein.
Common questions
Q: Can I assemble this ahead of time?
A: Yes. Assemble the casserole, cover tightly, and refrigerate for up to 24 hours before baking. Add a few extra minutes to the bake time if starting cold from the fridge.
Q: Can I use frozen broccoli?
A: Yes. Thaw and squeeze out excess water first, or toss frozen florets straight in but expect a little more steam; blanching or sautéing briefly beforehand improves texture.
Q: How can I make this healthier without losing flavor?
A: Use part-skim dairy, swap in Greek yogurt mixed with a little milk for lighter creaminess, choose whole-grain or legume pasta for more fiber and protein, and increase the vegetable ratio.
Q: Is this safe to freeze after baking?
A: Absolutely. Cool completely, then freeze in airtight containers for up to 2–3 months. Thaw overnight in the fridge before reheating.
Q: What size casserole dish should I use?
A: A 9×9-inch or similar shallow baking dish works well. If you use a larger dish, the bake will be thinner and may need slightly less time.
Q: Can I make this dairy-free or vegan?
A: Yes—use a dairy-free Alfredo sauce (like cashew or cauliflower-based) and plant-based cheeses, and swap chicken for tofu, tempeh, or jackfruit.
High Protein Alfredo Bake
A creamy, cheesy casserole that combines tender shredded chicken, broccoli, and melty cheese over pasta for a protein-packed weeknight meal.
- Prep Time: 15 minutes
- Cook Time: 25 minutes
- Total Time: 40 minutes
- Yield: 4 servings
- Category: Main Course
- Method: Baking
- Cuisine: Italian
- Diet: High Protein
Ingredients
- 8 oz pasta (penne, rigatoni, or shells)
- 2 cups cooked chicken breast, shredded
- 2 cups Alfredo sauce
- 1 cup broccoli florets
- 1 cup mozzarella cheese, shredded
- 1/2 cup grated Parmesan cheese
- Salt and pepper to taste
- Fresh parsley for garnish (optional)
Instructions
- Preheat the oven to 350°F (175°C). Lightly grease a 9×9-inch baking dish.
- Cook the pasta according to package instructions until just al dente, then drain and set aside.
- Combine the cooked pasta, shredded chicken, Alfredo sauce, and broccoli florets in a large bowl. Toss until evenly coated.
- Season with salt and freshly cracked black pepper. Transfer the mixture into the prepared baking dish and spread it into an even layer.
- Sprinkle the shredded mozzarella evenly over the top, then finish with the grated Parmesan.
- Bake for 20–25 minutes, or until the cheese is melted and golden. Broil for an extra 1–2 minutes if desired.
- Remove from the oven, let rest for 5 minutes, garnish with chopped parsley if desired, and serve warm.
Notes
For extra protein, use chickpea or lentil-based pasta. Swap part-skim Alfredo to reduce calories.