impossibly easy banana bread coffee cake

Ingredients For impossibly easy banana bread coffee cake

• 2-3 lg

  ripe bananas, mashed
• 1 lg

  ripe banana, sliced
• 2/3 c

  granulated sugar
• 1/4 c

  milk
• 3 Tbsp

  vegetable oil
• 1 tsp

  ground cinnamon
• 3

  eggs
• 2 2/3 c

  original bisquick mix
• 3/4 c

  chopped walnuts or pecans
• STREUSEL
• 1 c

  original bisquick mix
• 1/2 c

  chopped walnuts or pecans
• 1/2 c

  brown sugar, firmly packed
• 6 Tbsp

  butter, cut into small pieces
• serve with maple syrup, if desired