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Tex-Mex Keto Squash Casserole

Tex-Mex Keto Squash Casserole

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Tex-Mex Keto Squash Casserole is a creamy, cheesy delight that brings a burst of flavor to any meal while keeping it low in carbs. This casserole combines tender summer squash with zesty tomatoes and rich cheddar cheese, all baked to perfection for a satisfying side dish that everyone will love. It’s perfect for family gatherings, potlucks, or even weeknight dinners when you want something indulgent yet healthy.

  • Total Time: 45 minutes
  • Yield: Serves approximately 6 people 1x

Ingredients

Scale
  • 1 tsp olive oil
  • 2 pounds summer squash, sliced
  • 1 cup diced onion
  • 1 can Rotel tomatoes, drained
  • 1 ½ cups grated cheddar cheese (reserve ½ cup for topping)
  • ½ cup sour cream
  • ½ cup mayonnaise
  • ¼ tsp salt
  • ¼ tsp black pepper

Instructions

  1. Preheat your oven to 350°F.
  2. In a large skillet, heat the olive oil over medium heat. Add the sliced summer squash and diced onion, cooking until tender (about 8–10 minutes). Drain excess liquid.
  3. In a mixing bowl, combine the drained squash mixture with Rotel tomatoes, cheddar cheese (reserve half), sour cream, mayonnaise, salt, and pepper.
  4. Pour the mixture into a medium casserole dish and top with reserved cheese.
  5. Bake for 20–30 minutes until bubbly and golden. Let sit for 5–10 minutes before serving.
  • Author: Marjorie
  • Prep Time: 15 minutes
  • Cook Time: 30 minutes
  • Category: Side Dish
  • Method: Baking
  • Cuisine: Tex-Mex

Nutrition

  • Serving Size: 1 serving
  • Calories: 230
  • Sugar: 3g
  • Sodium: 420mg
  • Fat: 18g
  • Saturated Fat: 7g
  • Unsaturated Fat: 9g
  • Trans Fat: 0g
  • Carbohydrates: 9g
  • Fiber: 3g
  • Protein: 8g
  • Cholesterol: 40mg
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