Crispy Topped Brussels Sprouts and Cauliflower Gratin

INGREDIENTS

slices Bacon, center-cut

4 cups

Brussels sprouts

4 cups

Cauliflower florets

Garlic cloves

2 cups

Vidalia or other sweet onion

1 1/8 oz

All-purpose flour

1/4 tsp

Black pepper, freshly ground

1/8 tsp

Nutmeg, freshly ground

3/4 tsp

Salt

Cooking spray

1/4 cup

Panko

1 1/2 cups

1% low-fat milk

2/3 cup

Half-and-half

1/2 cup

Parmigiano-reggiano cheese, grated