These overnight oats taste like dessert for breakfast, in the best possible way. Tres leches overnight oats are inspired by the beloved Latin American cake, where sponge cake soaks in three kinds of milk until it’s lusciously creamy. Here, oats soak overnight in a trio of milks, a protein shake, Greek yogurt, and a little sweetened condensed and evaporated milk, until they turn thick, creamy, and rich. They’re lightly sweetened (much less than the cake), packed with protein and fiber, and topped with whipped topping, strawberries, cinnamon, and coconut. It’s a make-ahead breakfast that feels like a treat but keeps you full all morning.
The genius of overnight oats is that they do all the work while you sleep. You stir everything together in a jar, refrigerate it overnight, and wake up to a ready-made breakfast, no cooking required. This version leans into the tres leches theme with that creamy three-milk soak, and bumps up the protein with a protein shake, Greek yogurt, and protein oats, so it’s genuinely satisfying rather than leaving you hungry an hour later. It’s a perfect meal-prep breakfast you can feel good about.
Why this works
A few smart choices make these oats both creamy and genuinely filling, and they’re worth understanding.
The three-milk soak is what ties it to tres leches and what makes it so creamy. A protein shake forms the bulk of the liquid (adding protein and vanilla flavor), Greek yogurt adds tang and thickness, and small amounts of sweetened condensed and evaporated milk bring that signature rich, sweet, milky tres leches flavor, without nearly as much sugar as the cake. Together they soak into the oats overnight and create a thick, pudding-like creaminess.
The protein and fiber are what set this apart from a typical bowl of oats. Between the protein shake, Greek yogurt, and protein oats, you’re getting a substantial amount of protein, and the oats plus chia or basil seeds add fiber. Protein and fiber together are what actually keep you full and satisfied through the morning, so this isn’t just a sweet breakfast, it’s a balanced one.
The seeds (chia or basil) do double duty: they add fiber and healthy fats, and they absorb liquid and help thicken the oats into that creamy, spoonable texture as they sit. And the overnight soak is the whole method, time in the fridge is what softens the oats and lets everything meld into a thick, ready-to-eat breakfast.
What goes in
The ingredients split into the oats and the toppings.
For the oats, you’ll need a vanilla protein shake, plain nonfat Greek yogurt, a little sweetened condensed milk, a little evaporated light (or 2%) milk, vanilla extract, protein oats (or quick rolled oats), chia or basil seeds, ground cinnamon, and optional monk fruit sweetener to taste.
For the toppings, a pinch of cinnamon, coconut flakes, light whipped topping, and sliced strawberries.
A few notes. A high-protein vanilla shake (the recipe uses a 26g one) is what makes this so protein-rich; any vanilla protein drink works. Use thick, plain Greek yogurt for body and tang. The sweetened condensed and evaporated milk are the tres leches signature, used in small amounts, so don’t leave them out, but you can adjust the sweetness with more condensed milk or a little monk fruit. Protein oats boost the protein further, but regular quick or rolled oats work fine. And chia seeds are the easy stand-in if you can’t find basil seeds.
How to make them
In a mason jar or airtight container, combine the wet ingredients first: the protein shake, Greek yogurt, sweetened condensed milk, evaporated milk, and vanilla extract. Mix well until smooth.
Add the chia or basil seeds, the oats, and the cinnamon, and stir well to combine, making sure the oats are fully submerged in the liquid. Taste and, if you’d like it sweeter, add a little more condensed milk or some monk fruit sweetener.
Cover and refrigerate overnight, or for at least 6 hours, until the oats are thick and creamy. The longer soak gives the best texture, though the recipe’s creator admits to happily eating it after just an hour when impatient.
When you’re ready to eat, divide the oats between two serving dishes (or eat from the jar). Top with light whipped topping, sliced strawberries, and a sprinkle of cinnamon and coconut flakes.
Tips, variations, and storing
A few things help. Stir really well when you combine everything so the seeds and oats are evenly distributed and don’t clump. Make sure the oats are fully covered by the liquid so they soften evenly. And give it the full overnight soak if you can, for the creamiest, thickest result.
This is an easy recipe to make your own. Swap the strawberries for other fruit, like banana slices, mango, or berries. Add a spoonful of nut butter for extra richness and staying power. A few chopped toasted nuts or a sprinkle of granola on top adds crunch. And you can adjust the sweetness freely, the recipe is intentionally lightly sweetened (unlike the very sweet cake), so dial it up or down to your taste.
For meal prep, this is a winner. You can make several jars at once at the start of the week, each one is a grab-and-go breakfast straight from the fridge. The oats keep well in an airtight container in the refrigerator for up to about 4 days, so a batch covers several mornings. Add the toppings (especially the whipped topping and fresh fruit) just before eating so they stay fresh, rather than stirring them in ahead. The oat base only gets thicker and creamier as it sits, so older jars are just as good.
This makes 2 servings. Creamy, lightly sweet, protein-packed, and tasting like your favorite cake, tres leches overnight oats are the kind of make-ahead breakfast that feels like a treat and actually fuels your morning.
It’s the sort of recipe that earns a permanent spot in your weekly rotation once you try it, because it solves the morning problem so neatly: it’s ready the moment you open the fridge, it tastes rich enough that you look forward to it, and it’s built to keep you going until lunch. For anyone who loves the flavor of tres leches but wants something they can eat every day without a second thought, this is about as good as a jar of oats gets.
WP Tasty (Tasty Recipes Premium) field values
- Category: Breakfast
- Method: No-Cook
- Cuisine: Latin American
- Diet: Vegetarian, Gluten Free (use certified gluten-free oats; high in protein. Not vegan, as it contains dairy.)
- Keywords: tres leches overnight oats, high protein overnight oats, healthy overnight oats, protein oats, meal prep breakfast, tres leches oats
- Serving Size: 3/4 cup (recipe makes 2 servings)
- Calories: 338 (from source; the source’s per-serving nutrition is in the JSON.)
- Equipment: Mason jar or airtight container, spoon
Tres Leches Overnight Oats
Equipment
- Mason jar or airtight container
- Spoon
Ingredients
Oats
- 1 cup vanilla protein shake such as a 26g protein shake
- 1/3 cup plain nonfat Greek yogurt
- 1 tbsp sweetened condensed milk
- 1 tbsp evaporated light milk or 2% milk
- 1/2 tsp vanilla extract
- 1/2 cup protein oats or quick rolled oats
- 1 tbsp basil seeds or chia seeds
- 1/2 tsp ground cinnamon
- monk fruit sweetener optional, to taste
For Topping
- 1 pinch cinnamon
- 1/2 tsp coconut flakes
- 2 tbsp light whipped topping
- 1/3 cup sliced strawberries
Instructions
- Mix the Wet Ingredients: In a mason jar or airtight container, combine the protein shake, Greek yogurt, sweetened condensed milk, evaporated milk, and vanilla extract. Mix well until smooth.
- Add the Dry Ingredients: Add the basil or chia seeds, oats, and cinnamon and mix well, making sure the oats are submerged. For sweeter oats, add more condensed milk or monk fruit.
- Refrigerate: Cover and refrigerate overnight, or at least 6 hours, until thick and creamy.
- Top and Serve: Divide into two serving dishes and top with light whipped topping, sliced strawberries, and a sprinkle of cinnamon and coconut flakes.
