Want to make the Smoothie King Power Meal Slim Watermelon at home? This homemade copycat recipe uses simple, fresh ingredients and tastes just like the store version. It’s cool, fruity, and packed with protein and fiber—perfect for a summer meal smoothie.
How I Figured Out This Recipe
This one had me scratching my head at first. I thought watermelon would make the smoothie watery and bland. But then I froze the watermelon chunks, and boom—game changer!
With the right balance of Greek yogurt, oats, and a splash of lime, I got that thick, creamy, refreshing taste just like the Smoothie King version.
Power Meal Slim Watermelon Ingredients
- 1 cup frozen watermelon chunks: gives it that cool, sweet watermelon base.
- 1 scoop vanilla whey protein powder: adds creamy flavor and protein power.
- ½ cup plain Greek yogurt: makes it smooth and helps with thickness.
- 2 Tbsp rolled oats: adds fiber and helps you stay full.
- ½ frozen banana: brings natural sweetness and thick texture.
- 1 tsp lime juice: brightens the whole smoothie with a little zing.
- 1 cup unsweetened almond milk: helps everything blend without extra sugar.
- 1 cup ice: keeps it thick and cold.
How to Make Power Meal Slim Watermelon (Copycat)
- Add all ingredients to your blender: frozen watermelon, protein, yogurt, banana, oats, lime juice, almond milk, and ice.
- Blend low to high until everything is smooth and creamy.
- Taste and fix: want it sweeter? Add a little more banana. Too thick? Add more almond milk.
- Pour it up and enjoy that cool, fruity smoothie!

Why This Tastes Like the Smoothie King Version
- Frozen watermelon keeps it cold and gives that fresh, summery flavor.
- Vanilla protein + Greek yogurt = creamy and satisfying.
- Oats and banana add body and help it feel like a real meal.
- Lime juice brings out the watermelon flavor, just like Smoothie King does.
Easy Tips and Swaps
- Use a plant-based protein and dairy-free yogurt to make it vegan.
- Skip the banana for a lower-sugar version—just add a few berries instead.
- Want more fiber? Toss in chia seeds or ground flax.
- Add mint for a refreshing twist!
How to Store Your Smoothie
In the Fridge: Keep it sealed and cold. Best if you drink it within 24 hours. Shake or stir before drinking.
In the Freezer: Freeze in ice cube trays or small jars. Thaw overnight in the fridge and reblend to refresh it.
Nutrition Info (Per Serving, about 20 oz)
- Calories: 380
- Protein: 35g
- Carbs: 38g
- Fat: 6g
- Fiber: 6g
Note: This info is an estimate. It can change based on the protein powder and add-ins you use.
FAQs
- Can I use fresh watermelon instead of frozen?
- Yes, but you’ll need to add more ice to keep it thick.
- Is this smoothie filling enough for a meal?
- Definitely! It’s packed with protein, fiber, and slow-digesting carbs from oats and yogurt.
- What if I don’t like bananas?
- You can leave it out! Just add a little more yogurt or watermelon and maybe a drop of honey for sweetness.
Try More Recipes:
- Smoothie King Power Meal Slim™ Vanilla
- Smoothie King Power Meal Slim™ Strawberry
- Smoothie King Power Meal Slim™ GLP-1 Vanilla
Smoothie King Power Meal™ Slim Watermelon
4
servings30
minutes300
kcalA refreshing, creamy watermelon smoothie with protein and fiber—just like Smoothie King’s summer meal shake.
Ingredients
1 cup frozen watermelon chunks
1 scoop vanilla whey protein powder
½ cup plain Greek yogurt
2 Tbsp rolled oats
½ frozen banana
1 tsp lime juice
1 cup unsweetened almond milk
1 cup ice
Directions
- Put all ingredients in your blender.
- Blend until smooth and creamy.
- Taste and adjust texture or sweetness.
- Pour and serve right away.