Baked Zucchini and Black Bean Vegetarian Casserole with Regional Spices

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

A flavorful vegetarian casserole combining tender zucchini, black beans, and regional spices baked under melted cheese for a satisfying meal. This mexican-inspired vegetarian (vegetarian) ready in about 50 minutes pairs olive oil, medium, diced yellow onion, minced garlic cloves for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 320 calories and feeds 6, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 15 min Cook: 35 min Serves 6 Mexican cuisine 320 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat oven to 375°F. Heat 2 tbsp olive oil in a large skillet over medium heat. Add 1 medium diced yellow onion and 3 minced garlic cloves, sautéing for 4-5 minutes until softened and fragrant.
  2. Step 2: Stir in 1 1/2 tsp ground cumin, 1 tsp smoked paprika, and 1 tsp chili powder, cooking for 1 minute until fragrant.
  3. Step 3: Add 15 oz drained canned black beans and 14 oz canned diced tomatoes to the skillet along with 1 tsp salt and 1/2 tsp black pepper. Simmer for 8 minutes until slightly thickened.
  4. Step 4: In a large mixing bowl, combine the cooked bean mixture with 4 sliced medium zucchinis.
  5. Step 5: Transfer the mixture into a greased 9x13-inch baking dish, spreading evenly. Sprinkle 1 1/2 cups shredded Monterey Jack cheese on top.
  6. Step 6: Bake uncovered for 25-30 minutes until the cheese is melted and bubbly and the zucchini is tender.
  7. Step 7: Remove from oven and garnish with 2 tbsp chopped fresh cilantro before serving.

Equipment for this recipe

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Frequently asked questions

How long does Baked Zucchini and Black Bean Vegetarian Casserole with Regional Spices take to make?

Total time is about 50 minutes (15 min prep + 35 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Baked Zucchini and Black Bean Vegetarian Casserole with Regional Spices?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep olive oil from drying out.

Can I substitute ingredients in Baked Zucchini and Black Bean Vegetarian Casserole with Regional Spices?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Baked Zucchini and Black Bean Vegetarian Casserole with Regional Spices for a different number of people?

The recipe is written for 6 servings. Multiply each ingredient by (your serving target / 6). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

Is Baked Zucchini and Black Bean Vegetarian Casserole with Regional Spices vegetarian?

Yes — this recipe is tagged vegetarian based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.