Preheat a Panini press maker or hot griddle.
In a medium sized bowl, add chicken, garlic, oil, salt and pepper and mix well.
Add the course ground oatmeal to the mixture and coat the chicken well.
In a medium sized skillet, on medium high heat, evenly spray cooking oil spray for 2 seconds.
Place the chicken in the skillet and pan fry for 7-8 minutes.
Spray cooking oil spray over chicken for 2 seconds and turn chicken; pan fry for another 7-8 minutes or until golden brown.
Remove from heat and transfer chicken to a plate to cool.
In a small sized bowl add avocado pulp, tomatoes and onion and mix well.
Cut the mini slider buns in half and evenly spread the avocado mixture on the top half of each bun.
Evenly divide the chicken strips and place them equally on bottom half of each mini slider bun.
Add some spinach leaves over the chicken, sprinkle some cheese on top and cover with the top slider bun.
In the Panini maker, arrange 4 sliders at a time and press for 1-3 minutes or follow the manufacturer instructions.
Remove sliders from the Panini maker and transfer to a plate.
Serving Size 1
* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.