Remove seeds from the pepper and add it together with salt to the beef bring the beef to boil.
Prepare tomatoe onion and spinach

Add cooking oil to the beef when it has boiled and there is no water in it, cook until golden brown.
Add onions cook slightly then add the cut tomatoe. Cover and let cook till it's pasty.
Add 1 cup water, and pili ili hoho and let cook till it forms a thick paste as shown below.

Cut the spinach and add to the beef, cover and cook for 3 minutes.
For tastier vegetables I'd recommend you cut into big sizes unlike the thin small sizes.