Busy mornings leave little time for cooking, yet you still want a breakfast that fuels you until lunch. Overnight oats solve this problem because you prepare them the night before and eat them from the jar in the morning. No heating, no mess. The Houszy Round Glass Containers Set of 3 gives you three sizes—400 ml, 650 ml and 950 ml—to match your portion needs. Each jar features an airtight snap‑lock lid, a glass body that moves safely from fridge to microwave or oven, and a stackable design. This guide shows how to portion overnight oats using these containers for weekday meals.

Why overnight oats jars work for weekdays

• You mix oats, liquid and extras in a jar the evening before and refrigerate them, which removes morning cooking time.

• The sealed jar prevents spills, so you can carry it to work, university or the gym without leaking.

• Overnight oats stay fresh in the refrigerator for up to five days when stored in an airtight container, which suits batch preparation.

• The 400 ml jar holds one serving, the 650 ml jar holds two servings and the 950 ml jar holds enough for three servings or a two‑day batch.

• Borosilicate glass does not retain odours or stains, so you can switch between sweet and savoury fills without flavour transfer.

• The snap‑lock lid creates a tight seal that keeps liquid inside, even if the jar tips over in a bag.

• Stackable containers nest together, which reduces the footprint in a crowded fridge shelf.

• Glass tolerates temperature shifts, so you can warm the oats in the microwave or eat them cold straight from the fridge.

Classic Berry Overnight Oats (400 ml single portion)

Ingredients

• 50 g rolled oats

• 120 ml milk (dairy or plant‑based)

• 30 g Greek yogurt

• 10 g chia seeds

• 10 g honey

• 50 g mixed berries (fresh or frozen)

Method

1. Place the oats and chia seeds at the bottom of the 400 ml jar.

2. Pour the milk, yogurt and honey over the dry ingredients.

3. Scatter the mixed berries on top.

4. Seal the jar with the snap‑lock lid.

5. Refrigerate overnight or for at least four hours.

6. In the morning, shake the jar gently or stir with a spoon before eating.

Peanut Butter Banana Oats (650 ml double portion)

Ingredients

• 80 g rolled oats

• 180 ml almond milk (or any milk)

• 20 g peanut butter (smooth or crunchy)

• 1 medium banana, sliced

• 15 g maple syrup

• 2 g ground cinnamon

Method

1. Stir the peanut butter into the almond milk until the mixture is smooth.

2. Add the oats, sliced banana, maple syrup and cinnamon to the 650 ml jar.

3. Mix lightly with a long spoon or spatula to distribute the ingredients.

4. Seal the jar with the snap‑lock lid.

5. Refrigerate overnight or for at least four hours.

6. In the morning, give the jar a quick shake or stir before eating.

Tropical Mango Coconut (950 ml family or two‑day batch)

Ingredients

• 100 g rolled oats

• 240 ml coconut milk

• 100 g mango, peeled and diced

• 15 g shredded coconut (unsweetened)

• 20 g chia seeds

• 20 g honey

Method

1. Place the oats and chia seeds at the bottom of the 950 ml jar.

2. Pour the coconut milk over the dry ingredients.

3. Add the diced mango and shredded coconut on top.

4. Seal the jar with the snap‑lock lid.

5. Refrigerate overnight or for at least four hours.

6. In the morning, shake the jar to distribute the mango and coconut, then serve.

Chocolate Protein Power Oats (400 ml gym‑goer single)

Ingredients

• 50 g rolled oats

• 120 ml milk (dairy or plant‑based)

• 20 g whey protein powder (chocolate or vanilla)

• 5 g cocoa powder (unsweetened)

• 10 g almond butter

• 50 g banana, sliced

Method

1. Whisk the protein powder and cocoa powder into the milk until no lumps remain.

2. Add the oats, almond butter and banana slices to the 400 ml jar.

3. Mix lightly to combine.

4. Seal the jar with the snap‑lock lid.

5. Refrigerate overnight or for at least four hours.

6. In the morning, shake or stir the jar before eating.

Apple Cinnamon Comfort Oats (650 ml office double)

Ingredients

• 80 g rolled oats

• 180 ml milk (dairy or plant‑based)

• 100 g apple, peeled and diced

• 5 g ground cinnamon

• 20 g raisins

• 10 g maple syrup

Method

1. Stir the cinnamon into the milk until evenly distributed.

2. Add the oats, diced apple, raisins and maple syrup to the 650 ml jar.

3. Mix lightly to coat the fruit and oats.

4. Seal the jar with the snap‑lock lid.

5. Refrigerate overnight or for at least four hours.

6. In the morning, give the jar a quick shake or stir before eating.

Matcha Green Energy Oats (400 ml workweek single)

Ingredients

• 50 g rolled oats

• 120 ml milk (dairy or plant‑based)

• 3 g matcha powder (culinary grade)

• 10 g chia seeds

• ½ banana, sliced

• 10 g honey

Method

1. Whisk the matcha powder and chia seeds into the milk until the mixture is smooth and free of clumps.

2. Add the oats, banana slices and honey to the 400 ml jar.

3. Mix lightly to combine.

4. Seal the jar with the snap‑lock lid.

5. Refrigerate overnight or for at least four hours.

6. In the morning, shake or stir the jar before eating.

Pro tips for weekday overnight oats success

• Layer dry ingredients (oats, seeds, nuts) at the bottom of the jar before adding liquids; this keeps the top layer of fruit or nuts from becoming soggy.

• Keep a supply of pre‑measured dry mixes in small containers or bags; this speeds up assembly on busy evenings.

• Use a permanent marker to label each jar with the date prepared and the flavour; this helps you rotate stock and avoid waste.

• If you prefer warm oats, microwave the sealed jar for 60‑90 seconds, then stir before eating; the lid remains safe under microwave heat.

• Rinse the lid and jar immediately after use; this prevents residue build‑up and maintains the clarity of the glass over time.

• The stackable design lets you store all three sizes vertically in the fridge door or on a shelf; this keeps your weekday breakfast kits visible and accessible.

Fill Your Jars and Start Your Week Strong

Grab the Houszy Round Glass Containers Set of 3 and build your weekday breakfasts today. This stackable, airtight set in 400 ml, 650 ml and 950 ml sizes gives you perfect portion control for solo oats, doubles or batches. Shop the kitchenware collection now, pick your recipes, layer up Sunday evening and grab healthy breakfasts all week. Fast delivery brings your jars straight to your door. Browse Houszy kitchenware and make meal prep simple for busy days ahead.