Pistachio-Crusted Fish and Spinach Quinoa: A Protein-Packed Dinner in 20 Minutes

A quick and nourishing seafood dinner with a crunchy pistachio crust and protein-rich spinach quinoa—ready in just 20 minutes.

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

Pistachio-Crusted Fish and Spinach Quinoa: A Fast, Nutritious Dinner

If you’re seeking a healthy, flavorful dinner that comes together in only 20 minutes, look no further than pistachio-crusted fish served alongside vibrant spinach quinoa. This dish delivers a powerful nutritional punch, offering almost 40 grams of lean protein per serving and a balanced profile of healthy fats, antioxidants, and whole grains.

This recipe combines flaky, white fish coated in a crispy pistachio crust, complemented by fluffy quinoa tossed with fresh baby spinach and zesty lemon. Whether you’re meal prepping for the week or preparing a quick family dinner, this meal makes healthy eating simple and satisfying.

Why You’ll Love This Recipe

  • High Protein: Nearly 40g of protein per serving to fuel muscle and satiety.
  • Quick & Easy: Prep and cook in 20 minutes—perfect for busy nights.
  • Heart-Healthy Ingredients: Features omega-3-rich fish, fiber-filled quinoa, antioxidant-packed pistachios, and iron-rich spinach.
  • Crispy, Nutty Crust: Pistachios and whole-wheat panko offer a crunchy topping without heavy frying.
  • Versatile: Adaptable for gluten-free, nut-free, or plant-based diets with simple swaps.

Ingredients for Pistachio-Crusted Fish and Spinach Quinoa

IngredientAmountNotes
Quinoa3/4 cup (uncooked)Rinsed if needed
Firm skinless white fish fillets (e.g., cod or tilapia)4 pieces (6 oz each)Fresh or thawed, patted dry
Salt3/4 tsp, dividedAdjust to taste
Pepper1/2 tsp, dividedFreshly ground preferred
Nonfat Greek yogurt4 Tbsp (about 1 Tbsp per fillet)Acts as binding for the crust
Whole-wheat panko breadcrumbs1/4 cupGluten-free if needed
Unsalted, shelled pistachios (finely chopped)1/4 cupRaw preferred
Olive oil2 Tbsp (divided)Extra virgin
Baby spinach4 cupsFresh leaves
Lemon juice2 TbspFreshly squeezed

Easy Step-by-Step Instructions

  1. Cook the Quinoa:
    • Rinse the quinoa well if needed to remove bitterness.
    • Prepare according to package directions (typically combine with double the amount of water; bring to a boil; reduce heat and simmer covered for 12–15 minutes until water is absorbed).
  2. Preheat the Oven:
    • Set oven to 375°F (190°C). Line a rimmed baking sheet with nonstick foil for easy cleanup and spray lightly with cooking spray.
  3. Prepare and Season Fish:
    • Pat fillets dry with a paper towel to ensure proper crust adhesion.
    • Sprinkle both sides with 1/2 teaspoon salt and 1/4 teaspoon black pepper.
    • Brush the top of each fillet with approximately 1 tablespoon of Greek yogurt.
  4. Mix the Pistachio Crust:
    • In a bowl, combine 1/4 cup finely chopped pistachios and 1/4 cup whole-wheat panko breadcrumbs.
    • Add 1 tablespoon olive oil and stir to evenly moisten the mixture.
  5. Crust and Bake Fish:
    • Evenly sprinkle the pistachio-panko mix over each fillet and gently press to adhere.
    • Place the crusted fillets on the prepared baking sheet.
    • Bake 12–15 minutes, until fish is opaque and flakes easily with a fork.
  6. Prepare Spinach Quinoa:
    • When quinoa is cooked, fluff with a fork.
    • Add 4 cups fresh baby spinach, 2 tablespoons lemon juice, remaining 1 tablespoon olive oil, and 1/4 teaspoon each of salt and pepper.
    • Toss while quinoa is hot, wilting the spinach slightly and combining flavors.
  7. Serve:
    • Plate spinach quinoa and top with a pistachio-crusted fish fillet. Enjoy immediately!

Chef’s Tips and Variations

  • Fish Options: Cod and tilapia are excellent, but any firm white fish (such as haddock, grouper, or halibut) will work.
  • Panko Substitutes: For a gluten-free version, use GF panko or crushed rice crackers.
  • Nut-Free Option: Replace pistachios with toasted seeds (such as pumpkin seeds or sunflower seeds) if allergies are a concern.
  • Dairy-Free: Use a non-dairy Greek-style yogurt alternative.
  • Add Extras: Mix fresh herbs (dill, parsley) or lemon zest into the quinoa for extra brightness.

Nutritional Benefits

This recipe is carefully crafted to balance macronutrients and boost health:

Per ServingAmount
Calories385
Protein~36 g
Fat13.5 g (of which 2 g saturated)
Carbohydrates29 g
Fiber5 g
Sodium510 mg
  • Fish delivers lean protein and essential fatty acids for heart and brain health.
  • Pistachios supply healthy fats, antioxidants, fiber, and minerals like magnesium and potassium.
  • Greek yogurt adds a creamy tang and more protein, as well as probiotics for gut health.
  • Quinoa provides all nine essential amino acids (complete protein), plus fiber and B vitamins.
  • Spinach offers iron, vitamins K and C, and plant antioxidants for vibrant color and nutrition.

Time-Saving and Prep Tips

  • Meal Prep: Cook the quinoa and chop the pistachios in advance to streamline weeknight prep.
  • Leftover Storage: Store fish and quinoa in separate airtight containers in the refrigerator for up to 2 days. Reheat gently or enjoy the fish chilled on a salad.
  • Quick Dressing: Whisk extra Greek yogurt with lemon juice and olive oil for a creamy drizzle.

Ingredient Substitutions and Dietary Adaptations

  • Vegetarian/Vegan: Replace fish with roasted cauliflower or tofu slices. Use plant-based yogurt.
  • Gluten-Free: Opt for gluten-free panko or almond meal.
  • Nut-Free: Swap pistachios for roasted sunflower seeds.

Expert Tips for Perfect Pistachio-Crusted Fish

  • Preventing Fishy Odor: Rinse fillets in cold water and, if sensitive to odor, soak briefly in milk to neutralize smells before patting dry.
  • Baking Check: Look for fish to be opaque throughout and flake easily with a fork. For extra precision, a food thermometer should read 145°F in the thickest part.
  • Adhering the Crust: The Greek yogurt helps the nutty, crunchy topping stick; press firmly but gently.
  • Flavor Enhancements: Try adding a pinch of dried oregano, paprika, or garlic powder to the panko-pistachio mixture.

Serving Suggestions and Pairing Ideas

  • Serve with steamed or roasted green beans, asparagus, or a crisp salad for extra veggies.
  • Add a simple citrus vinaigrette over the fish for a burst of freshness.
  • Pair with a chilled glass of Sauvignon Blanc or unsweetened iced green tea.
  • For a heartier meal, offer a rustic whole-grain roll alongside.

Frequently Asked Questions (FAQs)

Q: What type of fish is best for pistachio-crusted recipes?

A: Firm white fish like cod, tilapia, haddock, or halibut works well. Salmon is also delicious with a pistachio crust.

Q: Can I prepare this recipe in advance?

A: Yes. You can make the quinoa ahead, and the pistachio-panko blend can be prepped a day early. Assemble and bake the fish just before serving for crispness.

Q: How can I make this recipe nut-free?

A: Substitute pistachios with roasted, unsalted sunflower or pumpkin seeds for crunch without nuts.

Q: How do I know when the fish is done?

A: The fish will be opaque and flake easily with a fork. A thermometer inserted into the thickest part should read 145°F (63°C).

Q: Can I freeze leftovers?

A: While quinoa and spinach freeze well, the crust on the fish may lose crispness. For best quality, store leftovers in the fridge for up to 2 days and reheat gently.

Quick Reference: Dinner in 20 Minutes or Less

  • Pistachio-crusted fish and spinach quinoa is a complete meal on its own.
  • Keep whole-wheat panko and pistachios on hand for a fast weeknight dinner base.
  • Pair with sides such as green beans, a fresh salad, or roasted veggies for variety.
  • This recipe pleases a variety of dietary preferences and can easily be doubled to serve more.

More Wholesome Dinner Ideas

  • Egg Pepper Rings with Carrot Salsa
  • Grilled Basil Chicken and Zucchini
  • Summer Squash, Mint, and Pecorino Pasta
  • Salmon Burgers and Five-Spice Sweet Potato Fries
  • Watercress Salad with Honey-Lime Vinaigrette

Summary

Pistachio-crusted fish and spinach quinoa marries quick cooking with robust nutrition and delicious flavor.

With a flexible ingredient list and fast assembly, this recipe is a weeknight hero that delivers on both taste and health. Include it in your dinner rotation, and enjoy the confident ease of preparing a balanced meal in just 20 minutes.

Sneha Tete
Sneha TeteBeauty & Lifestyle Writer
Sneha is a relationships and lifestyle writer with a strong foundation in applied linguistics and certified training in relationship coaching. She brings over five years of writing experience to thebridalbox, crafting thoughtful, research-driven content that empowers readers to build healthier relationships, boost emotional well-being, and embrace holistic living.

Read full bio of Sneha Tete