Cheese, bacon and spinach muffins

2 cups self raising flour
1 cup grated tasty cheese
a few rashers of bacon, diced
handful of baby spinach leaves roughly chopped
2 eggs
1 cup or thereabouts of milk
black pepper and chilli powder to taste

Mix the dry ingredients in a large mixing bowl (just using a spoon) then add in the milk and eggs. You might need to add a bit more/less milk. The consistency should be that of a thick cake batter, I guess? 
Spoon it into a greased muffin pan, top with a little extra grated cheese and bake at around 180C for 10-15 minutes.