Key Lime Pie: #55 of 1000 Sustainable Food Experiments

Normally we tend towards chocolate desserts in our house, but this key lime pie was super easy to make and too good not to try. We used TruWhip (healthier version of CoolWhip) for the topping instead of whipping our own cream, and no one seemed to mind. 🙂

This is part of our 1,000 Food Experiments to create sustainable meals for our family and hopefully yours.

Ingredients ($15 total)

2 cups graham cracker crumbs (crush up about 12 graham crackers) – $0.99
1/2 cup brown sugar – $0.52
6 tbsp butter, melted – $0.93
2 cans sweetened condensed milk – $3.98
1 cup plain Greek yogurt – $1.25
1 tsp lime zest – included in lime juice cost below
3/4 cup freshly squeezed lime juice – $2.99
1 tub TruWhip whipped topping – $3.99


1. Make the crust: mix the brown sugar and melted butter with the crushed cookie crumbs, press into 2 pie tins, and bake at 375F for 10 minutes, then cool.

2. Make the filling: whisk together the condensed milk, yogurt, lime juice and zest. Pour this mixture into the pie crusts and bake at 350F (note lower temperature than before) for 15 minutes. 

3. Cool to room temperature and then refrigerate until completely chilled. Top with whipped topping or whipped cream and enjoy!

Sustainability Score (explained here)

  • Time to make: 1 = 3+ hours
  • Servings:  3 = >6 servings
  • Cost per person (prices based on Trader Joe’s/Costco): 3 = <$5
  • Deliciousness: 2 = decent meal
  • Environmental impact: 3 = minimal damage
  • Nutritional value: 1 = eat rarely
  • TOTAL: 13/18

If you tried it, please let me know how it came out for you. Wishing you and your family a healthy, happy day!

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