I make a special blend of Muesli, which I found on a list of ingredient on packet a few years ago now! I only use a half a cup at a time. I did say that I would post recipe here.

It is quite expensive, as you had to buy it online. 500g of it was about $7.00AU and plus postage. I was given a sample of it. I took one look at the ingredients and went to the supermarket and found the main ingredients available there. I do buy all the stuff in bulk and on special if possible and kept it only for this cereal with NO NIBBLES. Living alone does help. I do pad it out with rolled oats, which the cheapest item. I have included my costing at the time in 2005 but the prices have gone up since then.

'Copycat of A High Protein Muesli'

4 cups (375g) Rolled Oats - generic
2 cups (120g) Vogel's Soy & Linseed Ultra Bran or All Bran (if you can't buy other.)
1 cup (110g) Oat bran - generic or very fine Oat bran from health food bulk store.
1/2 cup each of 70g of Sultanas, 40g of each Chopped Small Dried Apples & Dried Apricots (Best cut with kitchen scissors)1/2 cup (70g) of each Almond, Pepitas (Hulled Green Pumpkin Seeds), & Sunflower Kernels, all grounded if not you digesting nuts & seeds.

Mix well and store in airtight container.
All the above goes into Cereal Container including a 1/2 cup measuring cup.
1 serve = (1/2 Cup) 40-50g serves ~ 2 to 4 tablespoons Muesli with soymilk, almond milk and rice milk or oat milk, skim milk or protein powder.
You may add some chunk of fresh fruit if desired.
You may add one dessertspoon LSA and one teaspoon lecithin if desired.
Serves 18 per batch 900g

900g + @ $5.50 (reg: 500g @$7.25 + postage) this costing was in 2005 prices have gone up since then.

LSA
(Ratio 3:2:1)

2 cups linseeds
1 cup sunflower seeds
1/2 cup raw almonds

Grind all the above finely in a coffee grinder. Blend together.
Keep in the Freezer the bulk supply, and just keep out in the refrigerator enough for a few days, it's only takes a few minutes to thaw from the freezer as it's doesn't freeze solid.

Sprinkle it on your cereal, yoghurt, in bake goods, fruit salad or top of Hummus on Kavli Crispbread or bread.

Shopping list & Costing
Vogel's Soy & Linseed Ultra Bran 425g = 6 cups = 3 batches -(120g @ $1.14)
750g Rolled Oats Coles = 6- 8 cups (380g) @99c kg = 2 batches -(750g @. 99c)
Oat bran Coles 375g = 3 cups = 3 batches-(110g @ 40c)
Dried apples 200g = 5 batches-.(40g @ 50c)
Dried apricots 200g Coles or bulk Action = 5 batches-.(70g @ 53c)
Sultanas 1000g Farmland = 14 batches - (40g @ 40c)
Nuts and seeds can be bought loose
or in packs with enough for 3 - 6 batches
Pepitas 200g / 500g Mellow Yellow = 2 1/2 / 7 batches-(70g @ $1.15)
*Sunflower Seeds 500g Mellow Yellow = 7 batches-.. (70g @ 45c)
*Almonds 750g bulk = 10 batches- .(70g @ $1.05)
Pricing was done (2nd March 2005) Approx.1000g == Total $6.12

Note: The above list only would work if solely used for the above recipe. Allowing approx.12 - 20 dollars for first shopping stock up, then buying as required. Allowing, that the *extra almonds and sunflower seeds are bought a long with the shopping for the LSA mixture.
*Including the extra batches.
I have used Aldi Muesli at time as extra or filling. Mostly when I needed a little change.

BREAKFAST 2 Boiled Eggs Toast & Jam
LUNCH Turkish Bread with Hummus Lettuce Ham Marinated Feta with Marinated Peppers
DINNER Curry Ground Beef & Rice with Sambal