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Heart Healthy Crab and Cheese Casserole

(5.0)
By Judy Capodanno
Published 9/16/2025
Dietitian Reviewed: Jane Schwartz, RDN, CLT
Approved for These Diets:
Heart Healthy | Diabetic
Heart Healthy Crab and Cheese Casserole
Photo Credit: Baldwin Publishing Staff Photographer
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This heart healthy Crab and Cheese Casserole is a low-calorie and diabetic-friendly dish featuring a zucchini crab casserole smothered in melted Swiss cheese. Packed with protein and garden vegetables, it’s a perfect crab meat recipe for a low sodium diet. Enjoy this savory seafood casserole for brunch or as a light heart healthy dinner idea.

Explore more heart healthy casseroles. For the best texture and flavor, choose a firm, low-moisture Swiss cheese.

Total Time
75 minutes
Servings
4
Calories
181

What Makes This Heart Healthy Crab and Cheese Casserole Healthy

  • Packed with lean protein from lump crabmeat, which supports muscle maintenance and satiety.
  • Uses garden vegetables like zucchini and tomatoes for added fiber, vitamins, and bulk without excess calories.
  • Features reduced-fat Swiss cheese to provide satisfying flavor while managing saturated fat intake.
  • Relies on fresh herbs, garlic, and onion for flavor, allowing for better control over the total sodium content.

Key Health Highlights

  • Diabetic-Friendly: With 20 grams of carbohydrates and 3 grams of fiber per serving, this dish is a balanced choice that can fit well into a diabetic meal plan.
  • Good Source of Protein: Delivers a solid 16 grams of protein per serving to help you feel full longer.
  • Managing Sodium: The base recipe contains 537 mg of sodium. To significantly lower this for a low-sodium diet, use no-salt-added canned tomatoes and rinse the canned crabmeat well.
  • Heart-Healthy Fats: This recipe uses a minimal amount of butter and reduced-fat cheese to keep the saturated fat content low at just 2 grams per serving.
  • Rich in Nutrients: Zucchini and tomatoes provide essential nutrients like Vitamin C and potassium.

FAQs About Heart Healthy Crab and Cheese Casserole

Swiss cheese, as used in this recipe, melts beautifully and has a mild flavor that complements the crab. Other great options include Gruyère, sharp white cheddar, or a mix of Parmesan and mozzarella for a golden-brown top.

The key is to control the ingredients. Use fresh tomatoes instead of canned, rinse canned crabmeat thoroughly under cold water, and choose low-sodium or unsalted breadcrumbs. You can also use unsalted butter.

Yes, you can substitute imitation crab. Be aware that it is typically made from pollock fish and may have a different texture and a higher sodium content than lump crabmeat, so check the nutrition label.

This casserole pairs wonderfully with a simple green salad with a light vinaigrette, steamed asparagus, or a side of whole-grain bread to complement the rich flavors.

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Ingredients

Recipe yields 4 servings

Directions

  1. Step 1

    Preheat oven to 375°.

  2. Step 2

    Lightly coat a skillet with nonstick cooking spray and heat over medium heat until hot. Add onion, zucchini and garlic. Sauté until onion is transparent, stirring frequently, about 4 minutes. Set aside.

  3. Step 3

    In large bowl, mix tomatoes, crab, 1/4 cup of the cheese, 1/4 cup of the bread crumbs, pepper and basil. Add zucchini mixture and mix thoroughly but lightly. Transfer mixture into a 2-quart casserole dish. Sprinkle with remaining 1/4 cup of cheese and remaining 1/4 cup of bread crumbs. Dot with the butter. Bake, uncovered, for 30 to 40 minutes, or until crab is cooked and bread crumbs are browned and golden.

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Nutrition Facts

Serving Size:
1 1/2 cups

181
Calories
5
g
Fat
72
mg
Cholesterol
537
mg
Sodium
20
g
Carbs
2
g
Sat. Fat
3
g
Fiber
16
g
Protein

Alternative Cooking Methods

If your breadcrumbs aren't browning sufficiently after 40 minutes, you can place the casserole under your oven's broiler for 1-2 minutes. Watch it carefully to prevent burning.

Serving & Storage Tips

  • Serving: For the cleanest slices, let the casserole rest for 5-10 minutes after baking to allow it to set.
  • Storage: Store leftovers in an airtight container in the refrigerator for up to 3 days.
  • Reheating: Reheat individual portions in the microwave or in an oven-safe dish at 350°F (175°C) until warmed through.

Ingredient Substitutions

  • For Crab: Imitation crab can be used, but check its sodium content. Canned salmon or tuna (drained well) also work.
  • For Zucchini: Equal amounts of yellow squash or thinly sliced eggplant are excellent substitutes.
  • For Swiss Cheese: Gruyère, Monterey Jack, or a mild white cheddar can be used instead.
  • For Breadcrumbs: For a gluten-free option, use crushed rice crackers or certified GF breadcrumbs. For a low-carb alternative, try crushed pork rinds or a mix of almond flour and Parmesan cheese.

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