Outback Steakhouse Toowoomba Pasta Copycat Recipe: Creamy Shrimp Alfredo Masterpiece

A beloved Outback Steakhouse favorite, Toowoomba Pasta combines shrimp, mushrooms, and fettuccine in a spicy, creamy Alfredo sauce – now in a detailed homemade copycat recipe.

By Sneha Tete, Integrated MA, Certified Relationship Coach
Created on

Toowoomba Pasta is an iconic Outback Steakhouse offering that features plump shrimp and savory mushrooms tossed with fettuccine in a signature spicy, creamy Alfredo sauce. This copycat recipe brings the flavors and textures of the restaurant home, blending rich cream sauce, succulent seafood, and a balanced kick of spice for an indulgent pasta experience.

Table of Contents

About Toowoomba Pasta

Named after the Australian city, Toowoomba Pasta quickly became a cult favorite at Outback Steakhouse for its fusion of a spicy Alfredo sauce and the seafood twist of shrimp and mushrooms. Unlike classic Alfredo, the Toowoomba sauce includes ketchup, cayenne pepper, and garlic powder, balancing savory creaminess with layers of heat and subtle tang. While Outback no longer regularly features it on menus, food lovers worldwide have adopted and adapted the recipe for home kitchens.

With its distinct blend of heavy cream, shrimp, and umami-rich vegetables over fettuccine, Toowoomba Pasta is hearty, comforting, and perfect for both special occasions and everyday indulgence.

Ingredients

To replicate the authentic Outback Steakhouse Toowoomba Pasta, gather the following ingredients. Quantities are for 4 generous servings.

CategoryIngredientsQuantity & Notes
PastaFettuccine12–16 oz (uncooked)
ShrimpShrimp (16–20 per pound)1 lb, peeled and deveined
VegetablesCremini or Button Mushrooms, Zucchini (optional), Onion8 mushrooms (sliced), 1 small zucchini (wedged), 1/8 tsp onion powder
Sauce BaseHeavy Cream1.5 cups (or 400 ml)
SeasoningsButter, Olive Oil, Garlic (minced), Garlic Powder, Salt, Black Pepper, Paprika, Cayenne Pepper, Coriander (optional)See detailed list below
OtherKetchup, Parmesan Cheese, Fresh Parsley (for garnish), Chives (optional)1 tbsp ketchup, Parmesan for serving
  • Butter: 2–3 tbsp for sautéing and sauce
  • Olive oil: 2 tbsp for cooking shrimp and vegetables
  • Garlic Powder: 1 tsp
  • Paprika: 1 tsp
  • Cayenne Pepper: 1/4–1 tsp (to taste)
  • Black Pepper: 1/4 tsp + extra to taste
  • Coriander (ground): 1/4 tsp (optional)
  • Salt: 1/2 tsp + for pasta water
  • Ketchup: 1 tbsp for sauce depth
  • Parmesan Cheese: For grating over finished dish
  • Chives or Parsley: For garnish

Ingredient Notes

  • Seafood Alternatives: Some recipes swap shrimp for langostino or crawfish tails for added richness.
  • Mushroom Varieties: Cremini, button, or even shiitake mushrooms can be used depending on availability.
  • Zucchini: Optional, provides a fresh crunch and color.
  • Cream: Heavy cream is essential for thickness; whipped cream is sometimes used in Korean adaptations.

Step-by-Step Instructions

Follow these step-by-step directions for a restaurant-quality Toowoomba Pasta.

1. Prep Ingredients

  • Clean and devein shrimp. Pat dry, season with a pinch of salt and black pepper. Optionally, marinate with 1 tbsp olive oil, 1 tbsp ketchup, and 1/4 tsp cayenne.
  • Slice mushrooms and zucchini into uniform pieces.
  • Mince garlic. Chop parsley or chives for garnish.

2. Cook the Pasta

  • Bring a large pot of salted water to a boil.
  • Add fettuccine and cook until just al dente. (Undercook by 1–2 minutes; pasta will finish in sauce.)
  • Reserve 1/2 cup pasta water, drain the pasta, set aside.

3. Sauté Shrimp and Vegetables

  • Heat 1 tbsp butter and 2 tbsp olive oil in a large skillet over medium heat.
  • Add shrimp; sauté until pink (2–3 minutes). Remove to a plate.
  • To the same pan, add mushroom and zucchini; cook for 2–3 minutes until softened.
  • Add minced garlic; sauté 1 minute until fragrant.
  • Remove vegetables to a separate bowl.

4. Make the Creamy Toowoomba Sauce

  • Melt 2–3 tbsp butter in the pan.
  • Whisk in heavy cream, ketchup, garlic powder, paprika, cayenne, coriander, black pepper, and salt. (Combine sauce ingredients in a bowl first for easier blending.)
  • Bring to a gentle simmer, whisking often. Reduce by about half for thick richness.

5. Combine and Finish

  • Return shrimp to the sauce; simmer for 2–3 minutes.
  • Add cooked fettuccine and vegetables; toss to coat in sauce.
  • If needed, add reserved pasta water to thin the sauce to desired consistency.
  • Warm through for 1–2 minutes, ensuring pasta is well coated.

6. Serve

  • Divide pasta among plates.
  • Garnish with fresh parsley or chives and freshly grated Parmesan cheese. Optionally, finish with a dusting of extra cayenne or paprika.

Tips for Success

  • Al dente pasta: Slightly undercook pasta in boiling water so it finishes perfectly in the sauce.
  • Don’t overcook shrimp: Remove shrimp when pink and firm to avoid rubbery texture.
  • Thick, creamy sauce: Let the cream gently reduce; avoid boiling rapidly to prevent splitting.
  • Layered seasoning: Taste sauce before adding pasta, adjust cayenne for desired spice.
  • Freshly grated cheese: For best flavor and smooth melt, use freshly grated Parmesan.
  • Reserve pasta water: Use leftover pasta water to adjust sauce consistency as needed.

Recipe Variations and Substitutions

  • Protein swaps: Langostino tails, crawfish, or even diced chicken can replace shrimp for different flavor profiles.
  • Vegetarian version: Omit shrimp, double the mushrooms, and add extra zucchini or spinach.
  • Aromatic additions: Try green onions for extra freshness, or add a splash of white wine to the sauce.
  • Dairy alternatives: Substitute half-and-half for heavy cream to lighten the sauce (though some creaminess will be lost).
  • Spice level: Adjust cayenne or sprinkle in Korean chili flakes for a bolder kick.
  • Gluten-free adaptation: Use gluten-free fettuccine or other pasta as desired.

Serving Suggestions

  • Pair with: Garlic bread, simple green salad, or steamed asparagus.
  • Wine pairing: A crisp Chardonnay or Sauvignon Blanc complements the creamy sauce and shrimp.
  • Portion control: Recipe makes 4 large servings; halve for smaller households or scale up for larger gatherings.

Nutrition Facts (Approximate per Serving)

Calories1,200–1,400
Protein40–50 g
Fat70–80 g
Carbohydrates90–110 g
Sodium1,200–1,400 mg

*Actual nutritional values depend on precise ingredient choices and portion sizing.

Frequently Asked Questions (FAQs)

Q: Is Toowoomba Pasta spicy?

A: Yes, the sauce has a moderate spicy kick from cayenne pepper and optionally Korean chili flakes. Adjust spice to personal preference.

Q: Can I make Toowoomba Pasta ahead of time?

A: It’s best served fresh, but leftovers can be refrigerated for one day. Reheat gently in a pan with a splash of cream or milk to rejuvenate the sauce.

Q: Are there substitutions for shrimp?

A: Yes, langostino tails, crawfish, or diced chicken can substitute for shrimp, retaining the dish’s savory character.

Q: What if I don’t have heavy cream?

A: Substitute with a mix of whole milk and a touch of cornstarch for thickness. Half-and-half will work but yields a lighter sauce.

Q: Can I use a different pasta shape?

A: Traditionally, fettuccine is used for its ability to hold creamy sauces, but linguine or even spaghetti work as alternatives.

Q: How can I make this dish gluten-free?

A: Use gluten-free pasta and ketchup. Most other ingredients are gluten-free.

Q: How authentic is this copycat recipe?

A: This recreation draws from both former Outback staff guidance and popular copycat adaptations, offering the closest possible home version to the original restaurant dish.

Final Thoughts

Bring the magic of Outback Steakhouse’s Toowoomba Pasta to your own kitchen with this detailed, tested recipe. Master the multi-layered flavors of creamy Alfredo, succulent shrimp, and just the right touch of heat for a memorable plate. Whether recreating memories from the restaurant or exploring classic comfort food, this copycat guide delivers the perfect balance of richness, spice, and authentic flavor to your table.

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