Spaghetti Squash Au Gratin

INGREDIENTS

2

Chicken breast (about 3/4

2 cloves

Garlic

1

Onion, medium

1

Spaghetti squash, medium

1/2 tsp

Black pepper

1/2 tsp

Salt

1

Salt and pepper

2 tbsp

Butter

1 1/3 cups

Cheddar cheese

3/4 cup

Greek yogurt, plain