place the potatoes in a microwave safe bowl, prick with a fork and microwave 2-3 minutes on high. Flip the potatoes and microwave on high again another 2-3 minutes.
Chop the potatoes into 1-2" pieces.
Heat vegetable oil in a large skillet on medium high. Add chorizo pieces and cook til they release their fat- about 3 minutes.
Add a large spoonful of butter, when melted add garlic, onions and potatoes. Stir til potatoes are fully coated in chorizo grease. Continue to cook for 5-8 more minutes til potatoes begin to brown.
In a separate pan, saute spinach in butter until fully wilted. Remove from heat and set aside.
When potatoes have begun to brown in the skillet, add peppers and spinach. Continue to cook, stirring frequently until potatoes are brown and crunchy.