Well I tend to change up my burritos every time depending on what I have on hand, but here is the general idea:
1 carton of eggs (or what will fill up your pan)
1/2 cup milk
1/2-1 full bag of hash browns or
5 potatoes if you want to use fresh (pealed and chopped)
1/2 chopped onion
1/2 chopped bell pepper
1 chopped tomato
(lots of great veggies can be added: spinach, mushrooms, zuccs. or you could add any meat of your choice, I think ground sausage works the best.)
30 tortillas (not sure how many will be used) I usually tend to make somewhere between 15-25 burritos.
Fry potatoes, onions, and pepper with olive oil, season to taste. Add tomato and cook until hot. Remove potato mixture and put in a bowl. If you add meat cook it now and remove to another bowl. Beat eggs and milk and scramble in pan until cooked, but not over cooked. Keep them a bit on the wet side. Take foil or paper towels and tear off as many squares as needed, fill tortillas with eggs, then potato mixture, meat, then top with cheese and salsa. Wrap each burrito individually in the foil or paper towel. Put them all in a big zip lock for easy storage.
Unwrap from foil and wrap in paper towel and heat in microwave for 2 min. turn it in the middle. Or leave in foil and heat in oven at 400* for about 30 minutes (haven't used this in awhile so the times may very).
You can also make breakfast sandwiches similarly, wrapping and freezing them. English muffins work better than bagels that tend to get tough when microwaved.