Preheat oven to 350.
In a large saute pan, pour in the olive oil and stir in the garlic.
Add bread cubes, and toss to coat.
Season with oregano, salt and pepper, toss and spread on a baking sheet.
Bake for 15 minutes, or until crisp and dry. Set aside.
For the Chicken:
Heat olive oil in skillet on medium heat.
Add in the chicken breasts and cook for about 3 min on each side or until brown.
Stir in peas, mushroom gravy, and dressing, then bring to a boil.
Spoon the croutons on top of and around the chicken in the skillet.
Cover and simmer on medium-low heat for approximately 15 minutes.