Preheat oven to 375 degrees
Cut the whole chicken in half (use kitchen scissors it’s my go to method for cutting a whole chicken-I cut the back bone out then cut it vertical down the breast bone)
Lay the chicken down on the breast bone and season the backside with adobo, pepper, paprika, garlic powder, and lemon pepper seasoning
Squeeze juice from the half of lemon over the chicken
Turn the chicken over (the breast should be facing up now) and season it with the same seasonings in step 2
Squeeze lemon juice from the same lemon half in step 3 and drizzle the olive oil over the chicken
Slice the other half of the lemon into pieces, and arrange it around the chicken with rosemary and the chopped garlic
Place chicken in the oven and bake for 35 minutes (baste every 10-15 minutes )
Decrease oven temperature to 350 and cook for another 40-45 minutes (basting every 10-15 minutes)
Remove from oven. Serve and enjoy !