Right, breakfasts:
cooked:
Scrambled tofu
Fry an onion. Mash a block of firm tofu with a fork, then fry for a few minutes with enough turmeric to make it lovely and yellow. Serve with toast with a few sliced tomoatoes (looks like scrambled eggs and tastes good). Not especially cheap, but does make a darn good breakfast or lunch and you can feel so superbly smug knowing your child had tofu for breakfast
Lentil weaver 'porridge'
use up leftover cooked brown rice or quinoa (cook extra the night before on purpose). Warm through with a little milk, add mashed banana and cinnamon to taste. Yummy.
Real porridge made with oats is of course is the ultimate cheap and healthy breakfast. Unfortunately I can't stand it
Eggs in whatever style you like them. Cheap and filling.
Cold breakfasts:
Breakfast smoothies - liquidise soya milk / cow's milk and banana with as many of the following as you like: yogurt, tofu, soft fruits, wheatgerm, molasses, cashew or peanut butter (not for yours obviously, EF). This is as good as a meal IMO.
"Mixing" breakfast - ds's current favourite. You provide a choice of oats, rice crispies (Kallo do organic sugar and salt free version available from that earlier link), whatever other plain cereals they like (wheat flakes etc), wheatgerm, ground almonds or chopped nuts (not for EF), sunflower and pumpkin seeds, chopped apples, banana etc, raisins and chopped apricots, etc etc etc. Don't put all of these out every day, just say 6 things or so. If you have those big plastic canisters they can help themselves, or for ds I spoon small portions out into old yogurt pots each day . They choose what they want and mix it all into their bowl, then add milk (premeasured for little ones! I learnt this the hard way) from a plastic jug. Ds invariably puts everything in his bowl and then usually eats it all as well. V cheap and cheerful.
Homemade baked muesli: (from Lucy Burney's Optimum Nutrition - fab book)
3 cups oats
1 cup wheatgerm
1/4 cup sesame seeds
1/4 cup linseeds
1/4 cup sunflower seeds
4 tbsp ground almonds
1 tbsp barley malt (dissolve in a little warm water as v sticky otherwise)
1 tbsp blackstrap molasses (ditto)
1/4 cup olive oil
1 tsp vanilla extract
1 tsp ground cinnamon
2 cups raisins
1/2 cup desiccated coconut
Mix all ingredients up to almonds in a bowl. In a separate bowl, mix malt, molasses, oil, vanilla, and cinnamon. Mix wet with dry. Spread on 2 baking trays and bake for 20 mins until golden brown, stirring after 10 mins. Add the raisins and coconut and allow to cool. Once cooled store in an airtight jar or tin in the fridge. Really tasty served with milk and fresh fruit if you like. Requires a bit of cash outlay to get all the ingredients but will make tons of batches and save you money on processed cereals.