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Healthy Tater Tot Casserole with Beef and Lentils Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.5 from 121 reviews
  • Author: Paula
  • Prep Time: 20 minutes
  • Cook Time: 35-40 minutes
  • Total Time: 55-60 minutes
  • Yield: 9 servings
  • Category: Casserole
  • Method: Baking
  • Cuisine: American
  • Diet: Low Fat

Description

This Healthy Tater Tot Casserole with Beef and Lentils is a comforting, nutrient-packed twist on a classic favorite. Packed with lean ground beef, lentils, mushrooms, mixed vegetables, and cauliflower rice, all topped with crispy tater tots and melted cheddar cheese, it’s a hearty, wholesome meal perfect for weeknight dinners. The dish balances protein, fiber, and veggies, making it both delicious and nourishing.


Ingredients

Scale

Meat and Vegetables

  • 3 teaspoons avocado oil, divided
  • 1 medium yellow onion, diced
  • 1 lb lean ground beef (90/10 or 93/7)
  • 3 cups diced mushrooms (8 oz package)
  • 1 (12-ounce) bag frozen mixed vegetables
  • 1 cup frozen cauliflower rice

Liquids and Dairy

  • 3 cups low-sodium chicken broth or beef broth
  • 1 ½ cups shredded cheddar cheese, divided

Dry Ingredients and Seasonings

  • ¼ cup + 1 tablespoon all-purpose flour (or gluten-free flour if needed)
  • ½ teaspoon fine salt
  • ½ teaspoon garlic powder
  • ½ teaspoon onion powder
  • ¼ teaspoon black pepper

Others

  • 1 (15-ounce) can cooked lentils or 2 cups cooked lentils
  • 1 (28-ounce) package frozen tater tots or crispy crowns


Instructions

  1. Preheat Oven and Prepare Dish: Preheat your oven to 400°F (204°C). Lightly mist a 9×13-inch baking dish with cooking spray and set aside to prepare for layering the casserole.
  2. Sauté Onions and Brown Ground Beef: Heat 1 teaspoon of avocado oil in a skillet over medium-high heat. Add the diced onions and cook for 2 minutes until slightly softened. Add the ground beef and break it into small pieces as it cooks thoroughly, approximately 8-10 minutes. Drain excess fat if necessary, then transfer the cooked mixture into the prepared baking dish.
  3. Cook Mushrooms and Make Sauce: In the same skillet, heat the remaining 2 teaspoons of avocado oil over medium heat. Add the diced mushrooms and cook for 2-4 minutes until softened. Sprinkle the flour over the mushrooms and stir well to coat them evenly. Gradually add the broth, one cup at a time, stirring constantly to prevent lumps. Simmer the mixture for 3-5 minutes until thickened. Season with salt, garlic powder, onion powder, and black pepper; stir to combine well.
  4. Combine Mixtures: Pour the thickened mushroom sauce into the baking dish over the ground beef and onion mixture. Add the cooked lentils, frozen mixed vegetables, frozen cauliflower rice, and 1 cup of shredded cheddar cheese. Stir all ingredients together thoroughly to create an even mixture.
  5. Assemble Casserole: Spread the combined mixture evenly in the baking dish. Layer the frozen tater tots on top in a single, even layer, gently pressing them down lightly. Sprinkle the remaining ½ cup shredded cheddar cheese evenly over the tater tots.
  6. Bake Until Golden: Place the casserole in the preheated oven and bake for 35-40 minutes, or until the dish is bubbly and the tater tots on top turn golden brown and crispy.
  7. Rest and Serve: Remove the casserole from the oven and allow it to cool for 5 minutes before serving. This helps the casserole set slightly for easier portioning and serving.

Notes

  • Use gluten-free flour if you require a gluten-free version.
  • Lean ground beef options like 90/10 or 93/7 help reduce fat content.
  • Draining excess fat after cooking beef can help lower overall fat in the dish.
  • Frozen vegetables and cauliflower rice add volume and nutrients without extra calories.
  • This casserole reheats well and freezes nicely for meal prep.
  • For vegetarian option, substitute ground beef with plant-based crumbles and use vegetable broth.

Nutrition

  • Serving Size: 1 serving (about 1/9th of casserole)
  • Calories: 350 kcal
  • Sugar: 5 g
  • Sodium: 360 mg
  • Fat: 15 g
  • Saturated Fat: 6 g
  • Unsaturated Fat: 7 g
  • Trans Fat: 0 g
  • Carbohydrates: 30 g
  • Fiber: 6 g
  • Protein: 25 g
  • Cholesterol: 55 mg